The Unisphere, which we've already seen a few times, was the centerpiece of the 1964-65 World's Fair here at Flushing Meadows. A nearby plaque reads:
UNISPHERE
Dedicated to man's aspirations toward Peace through mutual understanding
and symbolizing his achievements in an expanding universe
Built and Presented by
United States Steel Corporation
to the 1964-65 New York World's Fair, April 22, 1964
Made of Stainless Steel, the Unisphere is 140' high, 120' in diameter and weighs 700,000 pounds