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Welcome to the world of World's Fairs. On these pages you will find a calendar of World's Fairs and similar events, with helpful links; questions and answers about world's fairs and expositions; and expo reviews.

For three decades, World's Fair, Inc., the sponsor of this website, has been a reliable source of information about world's fairs and international expositions.

An artist’s rendition of the “Big O,” a central  landmark of the ocean-themed World Expo 2012, Yeosu, South Korea

Read Alfred Heller’s review of Expo 2010 Shanghai —and other expo reviews