After World War II, Flushing Meadows–Corona Park reopened after having been closed for a long time, maintaining landscape architect Gilmore D. Clarke's site plan, as did the 1964 New York World's Fair, “Peace through Understanding."[1] Robert Moses was president of the World's Fair Corporation, which leased the park from the city and issued $29.8 million in bonds. The Unisphere was initially conceptually designed by the landscape architect in aluminum with metallic mesh continents; it underwent a further refined industrial design in stainless steel by industrial designers at Peter Muller-Munk Associates, and with engineering and fabrication by American Bridge Company, a division of US Steel. Built within 110 days,[3] the Unisphere is the world's largest globe.