After enduring 10 harrowing years of the Great Depression, visitors to the 1939–1940 New York World's Fair found welcome relief in the fair's optimistic presentation of the "World of Tomorrow." Pavilions from America's largest corporations and dozens of countries were spread across a 1,216-acre site, showcasing the latest industrial marvels and predictions for the future intermingled with cultural displays from around the world. Well known for its theme structures, the Trylon and Perisphere, the fair was an intriguing mixture of technology, science, architecture, showmanship, and politics. Proclaimed by many as the most memorable world's fair ever held, it predicted wonderful times were ahead for the world even as the clouds of war were gathering. Through vintage photographs, most never published before, The 1939–1940 New York World's Fair recaptures those days when the eyes of the world were on New York and on the future.