The 1939 World's Fair sprawled over 1,200 acres of the Flushing Meadows-Corona Park in Queens, one of the five boroughs of New York City. The fair was divided into seven thematic zones: the Government Zone, the Community Interests Zone, the Food Zone, the Communication and Business Zone, the Production and Distribution Zone, the Transportation Zone and the Amusement Zone.
The majority of these zones were laid out around the theme center, with the exception of the Amusement Zone, which wrapped around Fountain Lake, to the right of the rest of the fair grounds.
The theme center consisted of two all-white buildings which would become the symbol of the fair. These buildings were called the Trylon, which was over 700 feet tall, and the Perisphere. Visitors entered these buildings through a moving stairway and exited via a large curved walkway named the "Helicline." Inside the Perisphere visitors found a model of the city of tomorrow, viewed from an elevated moving walkway suspended above floor level. These theme buildings embodied the theme of the entire fair: "Building the World of Tomorrow."
One of the most interesting parts of the fair plan is the corridor of buildings that ran from the top of the Government Zone to the bottom of the Transportation Zone.

At the top of the Government Zone, facing the rest of the fair grounds, is the U.S. Government building. This building casts its shadow over the 'Court of Peace', flanked on either side by buildings for several countries, such as Ireland, Greece, and Mexico.

