The Royal Exhibition Building in the Carlton Gardens, Melbourne, Australia, pictured circa 1900. Designed by architect Joseph Reed, it was completed in 1880 for the Melbourne International Exhibition. Getty Images
The Unisphere, New York, was blown to pieces by a crashing spaceship in the original 'Men In Black' film. Photo: Sony
Plaza de España, Seville, appeared in 'Star Wars: Attack of the Clones'. Photo: Disney
The Seattle Space Needle viewed through an open structure. Photo: Newsmakers
The Royal Museum for Central Africa, in Tervuren near Brussels, was built for the Belgian capital's Expo of 1897. Getty Images
1889: The Eiffel Tower built by Alexandre Gustave Eiffel for the Exposition Universelle or World Fair of 1889 in Paris. (Photo by Hulton Archive/Getty Images)
Atomium, the symbol of the 1958 world's fair in Brussels. Getty Images
The China pavilion at Shanghai World Expo in 2010 displayed a history of world's fairs. Getty Images
The Tower of the Sun, at the Osaka world's fair in 1970, symbolises the dignity and unending progress of mankind with its arms stretched open in welcome. Getty Images
The Crystal Palace in south London was designed by Sir Joseph Paxton for the Great Exhibition of 1851. Getty Images
The Palace of Fine Arts, San Francisco, was built for the 1915 Panama-Pacific International Expo. Photo: Rich Hay
The Royal Exhibition Building was built for the Melbourne International Exhibition in 1880. Photo: John Torcasio
Canada Place was converted into a convention centre and cruise ship passenger terminal in Vancouver. Photo: Matt Wang
The Magic Fountain of Montjuic was built for the Barcelona Great Universal Exhibition in 1929. Getty Images
The Art Institute of Chicago originally housed the World's Columbian Exposition, or the 1893 Chicago World’s Fair. Photo: AIoC
The Biosphere in Montreal was the United States pavilion at Expo 1967. Photo: Guilaume Techer
The Royal Exhibition Building in the Carlton Gardens, Melbourne, Australia, pictured circa 1900. Designed by architect Joseph Reed, it was completed in 1880 for the Melbourne International Exhibition. Getty Images
The Unisphere, New York, was blown to pieces by a crashing spaceship in the original 'Men In Black' film. Photo: Sony
Plaza de España, Seville, appeared in 'Star Wars: Attack of the Clones'. Photo: Disney
The Seattle Space Needle viewed through an open structure. Photo: Newsmakers
The Royal Museum for Central Africa, in Tervuren near Brussels, was built for the Belgian capital's Expo of 1897. Getty Images
1889: The Eiffel Tower built by Alexandre Gustave Eiffel for the Exposition Universelle or World Fair of 1889 in Paris. (Photo by Hulton Archive/Getty Images)
Atomium, the symbol of the 1958 world's fair in Brussels. Getty Images
The China pavilion at Shanghai World Expo in 2010 displayed a history of world's fairs. Getty Images
The Tower of the Sun, at the Osaka world's fair in 1970, symbolises the dignity and unending progress of mankind with its arms stretched open in welcome. Getty Images
The Crystal Palace in south London was designed by Sir Joseph Paxton for the Great Exhibition of 1851. Getty Images
The Palace of Fine Arts, San Francisco, was built for the 1915 Panama-Pacific International Expo. Photo: Rich Hay
The Royal Exhibition Building was built for the Melbourne International Exhibition in 1880. Photo: John Torcasio
Canada Place was converted into a convention centre and cruise ship passenger terminal in Vancouver. Photo: Matt Wang
The Magic Fountain of Montjuic was built for the Barcelona Great Universal Exhibition in 1929. Getty Images
The Art Institute of Chicago originally housed the World's Columbian Exposition, or the 1893 Chicago World’s Fair. Photo: AIoC
The Biosphere in Montreal was the United States pavilion at Expo 1967. Photo: Guilaume Techer
The Royal Exhibition Building in the Carlton Gardens, Melbourne, Australia, pictured circa 1900. Designed by architect Joseph Reed, it was completed in 1880 for the Melbourne International Exhibition. Getty Images