Radio City Music Hall

Radio City Music Hall is an entertainment venue located in New York City's Rockefeller Center. Its nickname is the Showplace of the Nation, and it was for a time the leading tourist destination in the city. Its interior was declared a city landmark in 1978.

Radio City has 5,931 seats for spectators, and additional seating can be placed on the pit elevator during events that do not require that space bringing the seating capacity to over 6,000; it became the largest movie theater in the world at the time of its opening.
Designed by Edward Durell Stone, the interior of the theater with its austere Art Deco lines represented a break with the traditional ornate rococo ornament associated with movie palaces at the time. The radiating arches of the proscenium united the large auditorium, allowing a sense of intimacy as well as grandeur. The interior decor was created by designer Donald Deskey. Deskey's geometric Art Deco designs incorporate glass, aluminum, chrome, and leather in the ornament for the theater's wall coverings, carpet, light fixtures, and furniture. His work borrowed heavily from the European Modern aesthetic style, of which he was the foremost exponent in the United States.

The Great Stage, designed by Peter Clark, measures 66.5 feet (20 m) deep and 144 feet (44 m) wide, and resembles a setting sun. Its system of elevators was so advanced that the U.S. Navy incorporated identical hydraulics in constructing World War II aircraft carriers; according to Radio City lore, during the war, government agents guarded the basement to assure the Navy's technological advantage. This elevator system was also designed by Peter Clark, and was built by Otis Elevators.

source: Wikipedia