The Unisphere is a spherical stainless steel representation of the Earth, located in Flushing Meadows–Corona Park in the borough of Queens, New York City. The sphere, which measures 140 feet (43 m) high and 120 feet (37 m) in diameter, was commissioned as part of the 1964 New York World's Fair. The Unisphere is one of the borough's most iconic and enduring symbols. Commissioned to celebrate the beginning of the space age, the Unisphere was conceived and constructed as the theme symbol of the 1964–1965 New York World's Fair. The theme of the World's Fair was "Peace Through Understanding" and the Unisphere represented the theme of global interdependence. It was dedicated to "Man's Achievements on a Shrinking Globe in an Expanding Universe".