With The World of Tomorrow as it's theme, the 1939 World's Fair opened in Queens, New York in April, and was visited by 40 million people before closing its doors in 1940.
On the anniversary of the 1915 World’s Fair in San Francisco, take a virtual tour through some of its most popular—and most unusual—attractions.
Explore six lasting legacies of the 1964 New York World’s Fair on the 50th anniversary of its opening.
Check out some surprising facts about the World’s Columbian Exposition.
From cotton candy to banana splits, many of our favorite treats were popularized by World’s Fairs.