The GE Building is an Art Decoskyscraper that forms the centerpiece of Rockefeller Center in Midtown Manhattan, New York City, USA. Known as the RCA Building until 1988, it is most famous for housing the headquarters of the television networkNBC. At 850 feet (259 m) tall, the 70-story building is the 10th tallest building in New York City and the 33rd tallest in the United States. Some of the building’s nicknames include The Slab and 30 Rock. The latter is derived from its address which is at 30 Rockefeller Plaza.