Exterior view of the Administration Building for the 1939-1940 New York World's Fair.
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Exterior view of the Administration Building for the 1939-1940 New York World's Fair.Margaret Bourke-White—The LIFE Picture Collection/Getty Images
Exterior view of the Administration Building for the 1939-1940 New York World's Fair.
Models of the sculpture 'Night' by artist Paul Manship, created for the 1939-1940 World's Fair.
Scene in Queens, New York, before the April 30, 1939, grand opening of the World's Fair.
Administrative buildings designed for the 1939 World's Fair.
Craftsmen work on a huge diorama prior to the opening of the 1939 Worlds Fair.
Craftsmen work on a huge architectural model of "the city of the future" at the 1939 World's Fair.
Preparing for the 1939 World's Fair, New York.
Preparing for the 1939 World's Fair, New York.
Working on General Motors' "Futurama" exhibit -- the city of the near future -- at the 1939 World's Fair.
Display in the Ford Motor Company pavilion at the 1939 World's fair.
Exhibit featuring raw materials that go into making Ford automobiles, 1939 New York World's Fair.
Waxworks on display at the 1939 World's Fair, including Supreme Court Chief Justice Charles Evans Hughes (bottom middle) and Adolf Hitler.
Exhibit featuring raw materials that go into making Ford automobiles, 1939 New York World's Fair.
Exhibit featuring raw materials that go into making Ford automobiles, 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model for a textile building created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Architectural model created for the 1939 New York World's Fair.
Modernist symbols of the 1939 World's Fair, the Trylon and the Perisphere -- collectively called the "Theme Centre" of the expo.
1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
LIFE magazine feature on the 1939 New York World's Fair.
Exterior view of the Administration Building for the 1939-1940 New York World's Fair.
Margaret Bourke-White—The LIFE Picture Collection/Getty Imag
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'The World of Tomorrow': Scenes From the 1939 New York World's Fair

Apr 29, 2014

Seventy-five years ago, on April 30, 1939, the colossal New York World's Fair opened in what is now Flushing Meadows-Corona Park, in the borough of Queens. The 1939 world exposition -- or "expo," for short -- was unique in many respects, not least in that it differed in both theme and purpose from the expositions that had come before, in places like Paris, London, Chicago, and St. Louis. Those world's fairs had, by and large, celebrated technological innovation and advances in science and medicine. The New York World's Fair, on the other hand, took as its focus nothing less than, in the words of the fair's official bulletin, presenting visions of "the World of Tomorrow."

This, the fair told its visitors -- more than 40 million of them, by the time the expo ended -- this is what we believe the future will look like.

[Watch: 'The Fall of the Fair']

That the future, in many of the exhibits and pavilions at the fair, looked almost wholly urban, rather sterile and vaguely Le Corbusierian might be a little disappointing to some viewers today. But when one considers that the 1939 expo -- the second-largest American world's fair of all time -- was conceived, planned and executed in the latter years of the Great Depression and on the cusp of the global cataclysm of World War II, there's something refreshingly and almost audaciously positive about the overall vibe. The exhibits might not have accurately anticipated or imagined what "Tomorrow" actually ended up looking like. But the fact that thousands brought the fair into being, and tens of millions came to witness the results of their efforts, suggests an optimism about the distant, if not the immediate, future that feels downright enviable today.

-- Ben Cosgrove is the Editor of LIFE.com

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