World's fair facts for kids

Poster advertising the Brussels International Exposition in 1897

Replica of the Gokstad Viking ship at the 1893 Chicago World's Fair

Palace of the railways and great connections at the International Exhibition of Hydropower and Tourism in 1925

A world's fair, also known as a universal exhibition or an expo, is a large international exhibition designed to showcase the achievements of nations. These exhibitions vary in character and are held in different parts of the world at a specific site for a period of time, typically between three and six months.

The term "world's fair" is commonly used in the United States, while the French term, Exposition universelle ("universal exhibition") is used in most of Europe and Asia; other terms include World Expo or Specialised Expo, with the word expo used for various types of exhibitions since at least 1958.

Since the adoption of the 1928 Convention Relating to International Exhibitions, the Paris-based Bureau International des Expositions has served as an international sanctioning body for international exhibitions; four types of international exhibition are organised under its auspices: World Expos, Specialised Expos, Horticultural Expos (regulated by the International Association of Horticultural Producers), and the Milan Triennial.

Astana, Kazakhstan, held the most recent Specialised Expo in 2017 while Dubai, United Arab Emirates hosted Expo 2020 (which was postponed to 2021 due to the COVID-19 pandemic). Belgrade, Serbia, which had been selected to host the next Specialised Expo in 2027 will take place from 15 May to 15 August 2027.

History
Types
- World Expos
- Specialised Expos
List of expositions
- World Expos
- Specialised Expos
Legacy
Current and upcoming expositions
See also

History

Exposition universelle in Paris, 1867

In 1791, Prague organized the first World's Fair, Bohemia (modern-day Czech Republic). The first industrial exhibition was on the occasion of the coronation of Leopold II as a king of Bohemia, which took place in Clementinum, and celebrated the considerable sophistication of manufacturing methods in the Czech lands during that time period.

France had a tradition of national exhibitions, which culminated with the French Industrial Exposition of 1844 held in Paris. This fair was followed by other national exhibitions in Europe. In 1851, under the title "Great Exhibition of the Works of Industry of All Nations", the World Expo was held in the Crystal Palace in Hyde Park, London, the United Kingdom. The Great Exhibition, as it is often called, was an idea of Prince Albert, Queen Victoria's husband, and is usually considered to be the first international exhibition of manufactured products. It influenced the development of several aspects of society, including art-and-design education, international trade and relations, and tourism. This expo was the precedent for the many international exhibitions, later called World Expos, that have continued to be held to the present time.

The character of world fairs, or expositions, has evolved since the first one in 1851. Three eras can be distinguished: the era of industrialization, the era of cultural exchange, and the era of nation branding.

Industrialization (1851–1938)

The Yerkes Great refractor telescope mounted at the 1893 World's Fair in Chicago

The first era, the era of "industrialization", roughly covered the years from 1850 to 1938. In these years, world expositions were largely focused on trade and displayed technological advances and inventions. World expositions were platforms for state-of-the-art science and technology from around the world. The world expositions of 1851 London, 1853 New York, 1862 London, 1876 Philadelphia, Paris 1878, 1888 Barcelona, 1889 Paris, 1891 Prague, 1893 Chicago, 1897 Brussels, 1900 Paris, 1904 St. Louis, 1915 San Francisco, and 1933–1934 Chicago were notable in this respect. Inventions such as the telephone were first presented during this era. This era set the basic character of the world fair.

Cultural exchange (1939–1987)

Ice Follies at the Seattle 1962 World's Fair

The 1939–1940 New York World's Fair, and those that followed, took a different approach, one less focused on technology and aimed more at cultural themes and social progress. For instance, the theme of the 1939 fair was "Building the World of Tomorrow"; at the 1964–1965 New York World's Fair, it was "Peace Through Understanding"; at the 1967 International and Universal Exposition in Montreal, it was "Man and His World". These fairs encouraged effective intercultural communication along with sharing of technological innovation.

The 1967 International and Universal Exposition in Montreal was promoted under the name Expo 67. Event organizers retired the term world's fair in favor of Expo (the Montreal Expos, a former Major League Baseball team, was named for the 1967 fair).

Nation branding (1988–present)

1992 Expo in Seville, Spain

From World Expo 88 in Brisbane onwards, countries started to use expositions as a platform to improve their national image through their pavilions. Finland, Japan, Canada, France, and Spain are cases in point. A major study by Tjaco Walvis called "Expo 2000 Hanover in Numbers" showed that improving national image was the main goal for 73% of the countries participating in Expo 2000. Pavilions became a kind of advertising campaign, and the Expo served as a vehicle for "nation branding". According to branding expert Wally Olins, Spain used Expo '92 and the 1992 Summer Olympics in Barcelona in the same year to underscore its new position as a modern and democratic country and to show itself as a prominent member of the European Union and the global community.

At Expo 2000 Hanover, countries created their own architectural pavilions, investing, on average, €12 million each. Given these costs, governments are sometimes hesitant to participate, because the benefits may not justify the costs. However, while the effects are difficult to measure, an independent study for the Dutch pavilion at Expo 2000 estimated that the pavilion (which cost around €35 million) generated around €350 million of potential revenues for the Dutch economy. It also identified several key success factors for world-exposition pavilions in general.

Types

Expo tower for the Osaka 1970 World Expo in Japan

At present there are two types of international exhibition: World Expos (formally known as International Registered Exhibitions) and Specialised Expos (formally known as International Recognised Exhibitions). World Expos, previously known as universal expositions, are the biggest category events. At World Expos, participants generally build their own pavilions. They are therefore the most extravagant and most expensive expos. Their duration may be between six weeks and six months. Since 1995, the interval between two World Expos has been at least five years. World Expo 2015 was held in Milan, Italy, from 1 May to 31 October 2015.

Specialised Expos are smaller in scope and investments and generally shorter in duration; between three weeks and three months. Previously, these Expos were called Special Exhibitions or International Specialized Exhibitions but these terms are no longer used officially. Their total surface area must not exceed 25 hectares (62 acres) and organizers must build pavilions for the participating states, free of rent, charges, taxes and expenses. The largest country pavilions may not exceed 1,000 m² (1⁄4 acre). Only one Specialised Expo can be held between two World Expos.

An additional two types of international exhibition may be recognized by the BIE: horticultural exhibitions, which are joint BIE and AIPH-sanctioned 'garden' fairs in which participants present gardens and garden pavilions; and the semi-regular Milan Triennial (not always held every third year) art and design exhibition, held in Milan, Italy, with the BIE granting official international exhibition status to 14 editions of the Triennale between 1996 and 2016.

World Expos

Expo 2000 brickwork, for the World Expo in Hannover, Germany in the year 2000.

World Expos (formally known as International Registered Exhibitions) encompass universal themes that affect the full gamut of human experience, and international and corporate participants are required to adhere to the theme in their representations. Registered expositions are held every 5 years because they are more expensive as they require total design of pavilion buildings from the ground up. As a result, nations compete for the most outstanding or memorable structure—for example Japan, France, Morocco, and Spain at Expo '92. Sometimes prefabricated structures are used to minimize costs for developing countries, or for countries from a geographical block to share space (i.e. Plaza of the Americas at Seville '92).

ASIMO at Expo 2005 in Japan.

In the 21st century the BIE has moved to sanction World Expos every five years; following the numerous expos of the 1980s and 1990s, some see this as a means to cut down potential expenditure by participating nations. The move was also seen by some as an attempt to avoid conflicting with the Summer Olympics. World Expos are restricted to every five years, with Specialized Expos in the in-between years.

Specialised Expos

Panoramic view of Expo 2012 Yeosu, in South Korea

Specialized Expos (formally known as International Recognized Exhibitions) are usually united by a precise theme—such as "Future Energy" (Expo 2017 Astana), "The Living Ocean and Coast" (Expo 2012 Yeosu), or "Leisure in the Age of Technology" (Brisbane, Expo '88). Such themes are more specific than the wider scope of world expositions.

Specialized Expos are usually smaller in scale and cheaper to run for the host committee and participants because the architectural fees are lower and they only have to customize pavilion space provided free of charge from the Organiser, usually with the prefabricated structure already completed. Countries then have the option of "adding" their own colours, design etc. to the outside of the prefabricated structure and filling in the inside with their own content.

List of expositions

List of official world expositions (Universal and International/Specialised) according to the Bureau International des Expositions.

World Expos

Dates	Name of Exposition	Country	City	Theme
04/1851 – 10/1851	Great Exhibition	United Kingdom of Great Britain and Ireland	London	Industry of all Nations
05/1855 – 11/1855	Exposition Universelle / Paris International	France	Paris	Agriculture, Industry and Art
05/1862 – 11/1862	International Exhibition	United Kingdom of Great Britain and Ireland	London	Industry and Arts
04/1867 – 11/1867	Exposition Universelle / Paris International	France	Paris	Agriculture, Industry and Arts
05/1873 – 10/1873	Weltausstellung 1873 Wien / Austrian International Exposition	Austria-Hungary	Vienna	Culture and Education
05/1876 – 11/1876	Centennial Exposition	United States	Philadelphia	Arts, Manufactures and Products of the Soil and Mine
05/1878 – 11/1878	Exposition Universelle / Paris International Exposition	France	Paris	New Technologies
10/1880 – 04/1881	Melbourne International Exhibition	Colony of Victoria	Melbourne	Arts, Manufacturing, Agriculture and Industrial Products of all Nations
04/1888 – 12/1888	Exposición Universal de Barcelona (1888)	Spain	Barcelona	Fine and Industrial Art
05/1889 – 10/1889	Exposition Universelle / Paris International Exposition	France	Paris	French Revolution
05/1893 – 10/1893	World's Columbian Exposition	United States	Chicago	Discovery of America
05/1897 – 11/1897	Brussels International Exposition	Belgium	Brussels	Modern Life
15/04/1900 - 12/11/1900	Exposition Universelle	France	Paris	19th century: an overview
04/1904 – 12/1904	Louisiana Purchase Exposition	United States	St. Louis	Louisiana Purchase
04/1905 – 11/1905	Liège International (1905)	Belgium	Liège	Commemoration of the 75th anniversary of independence
04/1906 – 11/1906	Milan International	Italy	Milan	Transport
04/1910 – 11/1910	Brussels International Exhibition	Belgium	Brussels	Works of Art and Science, Agricultural and Industrial Products of All Nations
04/1913 – 11/1913	Exposition universelle et international / Ghent International Exposition	Belgium	Ghent	Peace, Industry and Art
02/1915 – 12/1915	Panama–Pacific International Exposition	United States	San Francisco	Inauguration of the Panama Canal
05/1929 – 01/1930	Barcelona International Exposition	Spain	Barcelona	Arts, Industry and Sport
05/1933 – 10/1934	Century of Progress	United States	Chicago	The interdependence among industry and scientific research
04/1935 – 11/1935	Brussels International Exposition	Belgium	Brussels	Transports
05/1937 – 11/1937	Exposition Internationale des Arts et Techniques dans la Vie Moderne / Paris International Exposition	France	Paris	Arts and Technology in modern life
02/1939 – 09/1940	Golden Gate International Exposition	United States	San Francisco	Pageant of the Pacific
04/1939 – 10/1940	New York World's Fair	United States	New York	Building The World of Tomorrow
12/1949 – 06/1950	Exposition internationale du bicentenaire de Port-au-Prince	Haiti	Port-au-Prince	The festival of Peace
07/1958 – 09/1958	Brussels World's Fair	Belgium	Brussels	A World View: A New Humanism
04/1962 – 10/1962	Century 21	United States	Seattle	Man in the Space Age
04/1967 – 10/1967	Expo 67	Canada	Montreal	Man and His World
03/1970 – 09/1970	Expo '70	Japan	Osaka	Progress and Harmony for Mankind
04/1992 – 10/1992	Expo '92	Spain	Seville	The Era of Discovery
06/2000 – 10/2000	Expo 2000	Germany	Hanover	Man, Nature, Technology
03/2005 – 09/2005	Expo 2005	Japan	Aichi	Nature's Wisdom
05/2010 – 10/2010	Expo 2010	China	Shanghai	Better City, Better Life
05/2015 – 10/2015	Expo 2015	Italy	Milan	Feeding the planet, Energy for life
10/2021 – 04/2022	Expo 2020	United Arab Emirates	Dubai	Connecting Minds, Creating the Future
04/2025 – 10/2025	Expo 2025	Japan	Osaka	Designing Future Society for Our Lives

Specialised Expos

Dates	Name of Exposition	Country	City	Theme
05/1936 – 06/1936	ILIS 1936	Sweden	Stockholm	Aviation
05/1938 – 05/1938	Second International Aeronautic Exhibition	Finland	Helsinki	Aerospace
05/1939 – 09/1939	Exposition internationale de l'eau (1939)	Belgium	Liège	Art of Water
07/1947 – 08/1947	International Exhibition on Urbanism and Housing	France	Paris	Urbanism and Housing
07/1949 – 08/1949	Universal Sport Exhibition (1949)	Sweden	Stockholm	Sport and physical culture
09/1949 – 10/1949	The International Exhibition of Rural Habitat in Lyon	France	Lyon	Rural Habitat
04/1951 – 05/1951	The International Textile Exhibition	France	Lille	Textile
07/1953 – 10/1953	EA 53	Italy	Rome	Agriculture
09/1953 – 10/1953	Conquest of the Desert (exhibition)	Israel	Jerusalem	Conquest of the Desert
05/1954 – 10/1954	The International Exhibition of Navigation (1954)	Italy	Naples	Navigation
05/1955 – 06/1955	The International Expo of Sport (1955)	Italy	Turin	Sport
06/1955 – 08/1955	Helsingborg exhibition 1955	Sweden	Helsingborg	Modern Man in the Environment
05/1956 – 06/1956	Exhibition of citriculture	Israel	Beit Dagan	Citrus
07/1957 – 09/1957	Interbau	West Germany	West Berlin	Reconstruction of Hansa District
05/1961 – 10/1961	Expo 61	Italy	Turin	Celebration of centennial of Italian unity
06/1965 – 10/1965	IVA 65	West Germany	Munich	Transport
04/1968 – 10/1968	HemisFair '68	United States	San Antonio	Confluence of Civilizations in the Americas
08/1971 – 09/1971	Expo 71	Hungary	Budapest	The Hunt through the World
05/1974 – 11/1974	Expo '74	United States	Spokane	Celebrating Tomorrow's Fresh New Environment
07/1975 – 01/1976	Expo '75	Japan	Okinawa	The Sea We would like to See
06/1981 – 07/1981	Expo 81	Bulgaria	Plovdiv	Hunting
05/1982 – 10/1982	1982 World's Fair	United States	Knoxville	Energy Turns the World
05/1984 – 11/1984	1984 World's Fair	United States	New Orleans	The World of Rivers– Fresh Water as a source of life
03/1985 – 09/1985	Expo 85 (Tsukuba, Japan)	Japan	Tsukuba	Dwellings and Surroundings – Science and Technology for Man at Home
11/1985 – 11/1985	Expo 85 (Plovdiv, Bulgaria)	Bulgaria	Plovdiv	Inventions
05/1986 – 10/1986	Expo 86	Canada	Vancouver	Transportation and Communication: World in Motion – World in Touch
04/1988 – 10/1988	Expo '88	Australia	Brisbane	Leisure in the Age of Technology
06/1991 – 07/1991	Expo 91	Bulgaria	Plovdiv	The activity of young people in the service of a World of Peace
05/1992 – 08/1992	Expo Colombo '92	Italy	Genoa	Christopher Columbus, The Ship and the Sea
08/1993 – 11/1993	Expo '93	South Korea	Daejeon	The Challenge of a New Road of Development
05/1998 – 09/1998	Expo '98	Portugal	Lisbon	The Oceans: A Heritage for the Future
06/2008 – 09/2008	Expo 2008	Spain	Zaragoza	Water and Sustainable development
05/2012 – 08/2012	Expo 2012	South Korea	Yeosu	The Living Ocean and Coast
06/2017 – 09/2017	Expo 2017	Kazakhstan	Astana	Future Energy
05/2027 – 08/2027	Expo 2027	Serbia	Belgrade	Play for Humanity: Sport and Music for All

Legacy

The Space Needle and Monorail depicted on this 1962 stamp

Most of the structures are temporary and are dismantled after the fair closes, except for landmark towers. By far the most famous of these is the Eiffel Tower, built for the Exposition Universelle (1889). Although it is now the most recognized symbol of its host city Paris, there were contemporary critics opposed to its construction, and demands for it to be dismantled after the fair's conclusion.

Other structures that remain from these fairs:

1851 – London: The Crystal Palace, from the first World's Fair in London, designed so that it could be recycled to recoup losses, was such a success that it was moved and intended to be permanent, only to be destroyed by a fire in 1936.
1876 – Philadelphia: The Centennial Exposition's main building, Memorial Hall, is still in Fairmount Park, Philadelphia, and serving as the new home for the Please Touch Museum. The space under the entrance to Memorial Hall houses a scale model of the entire Exposition.
1880 – Melbourne: The World Heritage-listed Royal Exhibition Building in Melbourne, constructed for the Melbourne International Exhibition.
1893 – Chicago: The Museum of Science and Industry in Chicago is housed in the former Palace of Fine Arts, one of the last remaining buildings of the World's Columbian Exposition. In conjunction with the fair, the Art Institute of Chicago building was built to house conferences, as the World's Congress Auxiliary Building. The intent or hope was to make all Columbian structures permanent, but most of the structures burned, possibly the result of arson during the Pullman Strike. The foundation of the world's first Ferris wheel, which operated at the Exposition, was unearthed on the Chicago Midway during a construction project by the University of Chicago, whose campus now surrounds the Midway. Relocated survivors include the Norway pavilion, a small house now at a museum in Wisconsin, and the Maine State Building, now at the Poland Springs Resort in Maine.
1894 – San Francisco: The Japanese Tea Garden in San Francisco's Golden Gate Park is the last major remnant of the California Midwinter International Exposition. Large ornamental wooden gates and a pagoda from the 1915 Panama–Pacific International Exposition were brought in after the latter fair closed, making the Tea Garden a rare if not unique instance of a survivor that incorporates architectural features from two completely separate fairs.
1897 – Nashville: A full-scale replica of the Parthenon was built for the Tennessee Centennial and International Exposition where it stands today in Nashville's Centennial Park. It features plaster reproductions of the Elgin Marbles and, in 1990, a re-creation of the original Athena Parthenos statue was installed inside just as it was in the original Parthenon in ancient Greece.
1900 – Paris: the Grand Palais and Petit Palais.
Brookings Hall at Washington University in St. Louis, the administration building of the 1904 World's Fair

1904 – St. Louis: The St. Louis Art Museum in Forest Park, originally the Palace of the Fine Arts, and Brookings Hall at Washington University in St. Louis, are remnants of the Louisiana Purchase Exposition (held a year late, as it was originally intended to be the centennial of the Louisiana Purchase. But organizers, and President Theodore Roosevelt, wanted the fair to be held during the Olympics which were moved from Chicago.), better known as the St. Louis World's Fair. The aviary in Forest Park gave root to the St. Louis Zoo.
1906 – Milan: The Civic Aquarium of Milan built for the Milan Exposition is still open after 100 years and was recently renovated. The International Commission on Occupational Health (ICOH) was settled in Milan during the fair and had its first congress in the Expo pavilions. In June 2006 the ICOH celebrated the first century of its life in Milan. An elevated railway with trains running at short intervals linked the fair to the city center. It was dismantled in the 1920s.
1909 – Seattle: The landscaping (by the Olmsted brothers) from the Alaska–Yukon–Pacific Exposition (AYPE) in Seattle still forms much of the University of Washington campus. The only major building left from the AYPE, Architecture Hall, is used by the university's architecture school.
1915 – San Francisco: The Palace of Fine Arts in San Francisco and its adjacent artificial lagoon are the only major remnants of the Panama–Pacific International Exposition still in their original locations on the former fairgrounds (now the city's Marina District neighborhood), but the building is almost entirely a reconstruction. The plaster-surfaced original, not intended to survive after the fair, was a crumbling ruin in 1964 when all but the steel framework was demolished so that it could be reproduced in concrete. The San Francisco Civic Auditorium, now the Bill Graham Civic Auditorium, is another major legacy of the fair but was built off-site in the city's Civic Center. The independent Panama-California Exposition in San Diego left a substantial legacy of permanent buildings and other structures which today define its site, San Diego's central Balboa Park, including the Prado walkway, the California Tower and Dome (now home to the Museum of Us), the 1,500-foot Cabrillo Bridge, the lily pond and botanical gardens, and the Spreckels Organ Pavilion.
1929 – Seville & Barcelona: much survives from the two simultaneous fairs Spain hosted that year. The most famous are the remnants of the Ibero-American Exposition in Seville, in which the Spanish Pavilion's Plaza de España forms part of a large park and forecourt. Most of that fair's pavilions have survived and been adapted for other uses, with many of them becoming consulates-general for the countries that built them. The Barcelona International Exposition featured the famous German pavilion designed by Mies van der Rohe, which was demolished but later rebuilt on the original site.
1936 – Johannesburg: The Empire Exhibition, South Africa was built close to the University of the Witwatersrand, and by the late 1970s the growth of the university was large enough to incorporate the permanent buildings from the exhibition. In 1985, the university purchased the South African Government Building; the two Heavy Machinery Halls, now called Empire Hall and the Dining Hall; the Hall of Transport; the Tower of Light; the Cape Dutch complex; and the Bien Donne Restaurant.
1939 – New York City: The New York City Building from the 1939's World Fair, was reused for the 1964 World's Fair and is now the Queens Museum. Parachute jump was a ride from the fair. It was moved to the Coney island boardwalk in Brooklyn.
1942 – Rome: A special case is the EUR quarter in Rome, built for a World's Fair planned for 1942 but cancelled because of World War II. Today it hosts governmental and private offices, and several museums.
1958 – Brussels: In Brussels, the Atomium still stands at the exposition site. It is a 165-billion-times-enlarged iron-crystal-shaped building. Until June 2012, the "American Theatre" on the Expo grounds was frequently used as a television studio by the VRT.

Seattle – World's Fair sign at 47th and Aurora, 1962

1962 – Seattle: The Space Needle theme building of the Century 21 Exposition commonly known as the Seattle World's Fair still stands as a Seattle icon and landmark. The Seattle Center Monorail, the other widely known futuristic feature of the fair, still operates daily. The US pavilion became the Pacific Science Center. The original exterior and roof of the Washington State Pavilion has been preserved as a landmark, and now is part of Climate Pledge Arena.

The Unisphere, from the 1964 World's Fair in New York City, USA in the early 21st century

1964 – New York City: many structures still stand
- The Unisphere, built for the second New York World's Fair, stands on its original site in Flushing Meadows, Queens
- The Singer Bowl stadium, since converted into Louis Armstrong Stadium, part of the Billie Jean King National Tennis Center, site of the US Open.
- New York Hall of Science, built for the fair, continues to operate as a science museum, similar to its original role
- The Port Authority Heliport and Exhibit is now the Terrace on the Park event and catering venue
- The New York State Pavilion is mostly derelict, but is still an icon, with its observation towers prominently featured in 1997's Men in Black. The Theaterama building is the only portion still maintained, and is used by the Queens Theater. There are plans to restore to the main Tent of Tomorrow building.
- The New York City Pavilion, a holdover form the 1939 fair, continues to serve as the home of the Queens Museum
- Other artifacts remain throughout the park, and many buildings were transported for use elsewhere and continue to function.
1967 – Montreal: Among the structures still standing from Expo 67 in Montreal are Moshe Safdie's Habitat 67, Buckminster Fuller's American pavilion the "Montreal Biosphere", the Jamaica Pavilion, the Tunisia Pavilion, and the French pavilion (now the Montreal Casino).
1968 – San Antonio: San Antonio kept the Tower of the Americas, the Institute of Texan Cultures and the Convention Center from HemisFair '68.
1970 – Osaka: The Tower of the Sun was left standing, but was neglected after the conclusion of the Expo '70. After restoration to the structure was completed, the museum inside the tower was re-opened on 18 March 2018.
1974 – Spokane: Spokane still has its Riverfront Park that was created for Expo '74—the park remains a popular and iconic part of Spokane's downtown.

View of 1982 fairgrounds, with the Sunsphere

1982 – Knoxville: The Sunsphere from the Knoxville World's Fair remains as a feature of Knoxville's skyline.
1984 – New Orleans: The main pavilions of the 1984 New Orleans World's Fair became the Ernest N. Morial Convention Center, which is also known for its use as a shelter of last resort during Hurricane Katrina.
1986 – Vancouver: In Vancouver, many Expo 86 projects were designed as legacy projects. Of note are the Skytrain, Science World and Canada Place.
1988 – Brisbane: The Skyneedle, the symbol tower of Expo '88 in Brisbane, Queensland, Australia, still stands. Other survivors are the Nepalese Peace Pagoda of the Nepalese representation, now at the transformed World Expo '88 site South Bank Parklands, and the Japan Pond and Garden from the Japanese representation, now at the Brisbane Mount Cooth-tha Botanic Gardens. In 2018 the World Expo 88 Art Trail was re-birthed and dramatically expanded as part of the 30th Anniversary of World expo 88, now forming a Major tourist attraction in its own right.
1992 – Seville: The pavilions of Expo '92 in Seville had been converted into a technological square and a theme park.
1998 – Lisbon: The main buildings of Expo '98 in Lisbon were completely integrated into the city itself and many of the art exhibition pieces still remain.
2005 – Nagoya: The home of Satsuki & Mei Kusakabe, built for the 2005 Expo in Aichi, remains operating at its original site in Morikoro Park and is a popular tourist attraction.

The China pavilion at the Expo 2010; repurposed as a museum.

2010 – Shanghai: The China pavilion from Expo 2010 in Shanghai, the largest display in the history of the World Expo, is now the China Art Museum, the largest art museum in Asia.
2015 – Milan: The Italian Pavilion of Expo 2015 remains on the original site.

Some world's fair sites became (or reverted to) parks incorporating some of the expo elements, such as:

Audubon Park, New Orleans: Site of New Orleans's World Cotton Centennial in 1884
Jackson Park, Chicago and the Chicago Midway: Site of the 1893 Columbian Exposition
Centennial Park, Nashville: Tennessee Centennial Expo in 1897
Forest Park, Saint Louis: Home of the Saint Louis Louisiana Purchase Exposition of 1904
San Diego: Panama-California Exposition (1915) & California Pacific International Exposition (1935)
Seattle Center: Century 21 Exposition in 1962
Flushing Meadows Park, Queens, New York City: Site of both the 1939 New York World's Fair and the 1964 New York World's Fair
Montreal: Expo 67
San Antonio: HemisFair '68
Expo Commemoration Park, Osaka: Expo '70
Riverfront Park, Spokane: Expo '74
World's Fair Park, Knoxville: 1982 World's Fair
Vancouver: Expo 86
Brisbane: Expo '88: now represented with the South Bank Parklands
Seville: Expo '92
Daejeon (Taejŏn): Expo '93
Lisbon: Expo '98 was divided into several structures: Pavilhão Atlântico, Casino Lisboa, Oceanário and Pavilhão do Conhecimento [pt].
Shanghai Expo Park: Expo 2010
Rho, Milan, Lombardy District: Expo 2015

Poster for the 1900 expo

Some pavilions have been transported overseas intact:

The Argentine Pavilion from the 1889 Paris was relocated to Buenos Aires, Argentina until its demolition in 1932.
The Chilean Pavilion from 1889 Paris is now in Santiago, Chile and following significant refurbishment in 1992 functions as the Museo Artequin
The Peruvian Pavilion from 1900 Paris is now in Lima, as home to the Military Academy of History.
The Japanese Tower of the 1900 World's Fair in Paris was relocated to Laken (Brussels) on request of King Leopold II of Belgium.
The Belgium Pavilion from the 1939 New York World's Fair was relocated to Virginia Union University in Richmond, Virginia.
The USSR Pavilion from Expo 67 is now in Moscow.
The Sanyo Pavilion from Expo '70 is the Asian Centre at the University of British Columbia in Vancouver.
The Portugal Pavilion from Expo 2000 is now in Coimbra, Portugal.
The United Arab Emirates Pavilion from Expo 2010 is now in Saadiyat Island in Abu Dhabi in UAE
The Bahrain Pavilion from Expo 2015 was relocated to Bahrain. The Azerbaijan Pavilion is in that country's capital Baku. The Chinese Pavilion was brought back to Qingdao and is on the site of the 2014 horticultural exhibition.
The Save the Children Italy pavilion from Expo 2015 was dismantled and re-built as school for Syrian refugee children in Lebanon.

The Brussels Expo '58 relocated many pavilions within Belgium: the pavilion of Jacques Chocolats moved to the town of Diest to house the new town swimming pool. Another pavilion was relocated to Willebroek and has been used as dance hall Carré ever since. One smaller pavilion still stands on the boulevard towards the Atomium: the restaurant "Salon 58" in the pavilion of Comptoir Tuilier.

Many exhibitions and rides created by Walt Disney and his WED Enterprises company for the 1964 New York World's Fair (which was held over into 1965) were moved to Disneyland after the closing of the Fair. Many of the rides, including "It's a Small World", and "Great Moments with Mr. Lincoln", as well as the building that housed the Carousel of Progress are still in operation.

Disney had contributed so many exhibits to the New York fair in part because the corporation had originally envisioned a "permanent World's Fair" at the Flushing site. That concept instead came to fruition with the Disney Epcot theme park, an extension of the Walt Disney World Resort, near Orlando, Florida. Epcot has many characteristics of a typical universal exposition: national pavilions and exhibits concerning technology and/or the future, along with more typical amusement park rides. Meanwhile, several of the 1964 attractions that were relocated to Disneyland have been duplicated at the Walt Disney World Resort.

Occasionally other mementos of the fairs remain. In the New York City Subway system, signs directing people to Flushing Meadows, Queens remain from the 1964–65 event. In the Montreal subway at least one tile artwork of its theme, "Man and His World", remains. Also, a seemingly endless supply of souvenir items from fair visits can be found, and in the United States, at least, often turn up at garage or estate sales. Many fairs and expos produced postage stamps and commemorative coins.

The 1904 Olympic Games, officially the Games of the III Olympiad, were held in conjunction with the 1904 St. Louis fair, although no explicit coordination is evident. The Exposition Universelle (1900) Paris was also concomitant with the Olympic Games.

Current and upcoming expositions

2023 Buenos Aires

Expo 2023 was to be held at the Argentine capital and have a theme of "Science, Innovation, Art and Creativity for Human Development. Creative Industries in Digital Convergence".

Four countries had submitted bids to host Specialised Expo 2022/23:

Łódź
The central Polish city of Łódź announced its candidacy to host EXPO 2022. It was promoted in the Polish Pavilion at the EXPO 2015 in Milan. Consequently, the Polish government officially submitted Łódź's candidacy to the International Bureau of Expositions on 15 June 2016.
Minneapolis-Saint Paul made joint bids.
Buenos Aires (tentatively withdrawn)
Los Angeles (cancelled)
Rio de Janeiro (cancelled)

At the end of the project examination phase, BIE Member States voted for Buenos Aires as the host city of Expo 2022/23 via a secret ballot at the BIE General Assembly, held in November 2017.

However, Buenos Aires announced its withdrawal with no reschedule date.

2025 Osaka

Expo 2025 will be held at the Japanese city of Osaka and will have a theme of "Designing Future Society for Our Lives!”.

Four countries had submitted bids to host World Expo 2025:

Osaka, Japan
Osaka made its official bid for the Expo on 24 April 2017 with the theme "Designing Future Society for Our Lives".
Baku, Azerbaijan
The Azerbaijani capital entered its candidacy before the deadline under the theme "Human Capital".
Paris, France (withdrawn)
The French capital was the first to declare its candidacy, under the theme "Sharing our Knowledge, Caring for our Planet". The candidacy was withdrawn in January 2018 because of budget constraints.
Yekaterinburg, Russia
The Russian city entered its candidacy on 22 May 2017 under the theme "Changing world: inclusive innovation is for our children and future generations".

At the end of the project examination phase, BIE Member States voted for Osaka as the host city of Expo 2025 via a secret ballot at the BIE General Assembly, held in November 2018.

2027 Belgrade

Expo 2027 will be held at the Serbian capital Belgrade and will have a theme of "Play for Humanity: Sport and Music for All.".

Five countries had submitted bids to host Specialised Expo 2027/28:

At the end of the project examination phase, BIE Member States voted for Belgrade as the host city of Expo 2027/28 via a secret ballot at the BIE General Assembly, held in June 2023.

2030

Potential host countries may apply to host Expo 2030 between 6 and 9 years before its proposed opening date. Once one country has submitted an application, alternative countries have 6 months to submit theirs.

At the 167th BIE general assembly both South Korea and Russia indicated their intention to bid for this expo.

At the end of the project examination phase, BIE Member States will vote for the host city of Expo 2030 via a secret ballot at the BIE General Assembly, to be held in November 2023.

Non-BIE efforts

The only Expo to be held without BIE approval was the 1964–1965 New York World's Fair; the sanctioning organization at Paris denied it "official" status because its president, Robert Moses, would not comply with the BIE rule limiting the duration of universal expositions to six months. The Fair proceeded without BIE approval, and turned to tourism and trade organizations to host national pavilions in lieu of official government sponsorship. Many countries participated in that fair, including several newly independent African and Asian states. The two World's Fairs in New York (1939–40 and 1964–65) and the Century of Progress in Chicago (1934–1935) are the only two-year world expositions that have been held.

Frederick Pittera, a producer of international exhibitions and author of the history of world's fairs in the Encyclopædia Britannica and Compton Encyclopedia, was commissioned by Mayor Robert F. Wagner Jr. of New York City in 1959 to prepare the first feasibility studies for the 1964 New York World's Fair. Pittera was joined in his study by Austrian architect Victor Gruen (Inventor of the 'Shopping Mall'). The Eisenhower Commission ultimately awarded the world's fair bid to New York City against several major U.S. cities.

Because the U.S. government withdrew its membership in the Bureau International des Expositions from 2002 to 2017, Worlds Fair Nano is the first private effort in history to host a six-month World's Fair. Worlds Fair Nano is organizing a series of mini-World's Fairs around the country called World's Fair Nano in cities like San Francisco and New York City in order to build excitement for the six month World's Fair, which Worlds Fair Nano hopes to organize within the decade.

The Philippines International Fair of 1953 is another non-BIE exposition. It featured participation from 12 nations (11 foreign plus the host Philippines). It was the first world exposition after World War 2 and the first ever in Asia.

The Los Angeles World's Fair is another non-BIE effort.

International Horticultural Exhibition

The BIE, since 1959 grants recognition to the International Horticultural Exhibitions (Category A1) approved by the International Association of Horticultural Producers (AIPH) subject to it meeting certain criteria including being approved by the BIE general assembly.

International Horticultural Exhibitions (upcoming in italics):