Rockefeller Center is a large complex consisting of 19 highrise commercial buildings covering 22 acres (89,000 m2) between 48th and 51st Streets in New York City. Commissioned by the Rockefeller family,
it is located in the center of Midtown Manhattan, spanning the area between Fifth Avenue and Sixth Avenue. It was declared a National Historic Landmark in 1987. It is famous for its annual Christmas tree lighting ( wikipedia ).