Rockefeller Center is a 19-building commercial complex spanning 22 acres between 48th to 51st Streets and Fifth Avenue to Seventh Avenue. The original 14 Art Deco buildings were constructed by John D. Rockefeller between 1930 and 1939. The building sit on land that was leased long-term from Columbia University. The dominant tower is the 70-floor 30 Rockefeller Plaza, which is the headquarters for NBC and houses most of the network's New York Studios. An additional four International-style towers were built on the west side of Avenue of Americas in the 1960s and 1970s. The complex also includes the 5,933-seat Radio City Music Hall.
Rockefeller Central becomes Christmas Central during the holiday season as the site of a massive decorated Christmas Tree.