30 Rockefeller Center, or The Comcast Building, is a skyscraper and main component of the 19-building Rockefeller Center complex in Midtown, Manhattan, built by the Rockefeller Family in 1933. At 850 feet tall it is the 13th tallest building in New York City and its ownership is split between NBCUniversal and Tishman Speyer, as Tishman sold part of the building to NBCUniversal in 1996. That same year Tishman bought control over all of Rockefeller Center

The building was completed in 1933, and was designed by architect Ray Hood in the Art Deco style. It was opened as the RCA Building, and was later known as the GE Building for many years until it finally became the Comcast Building. The skyscraper is best known for housing television network NBC and its NBC Studios, where programs such as Saturday Night Live, Today Show and NBC Nightly News are produced, as well as being the setting of the NBC sitcom 30 Rock.

The lobby of the building was the brief home of the famous Diego Rivera mural Man at the Crossroads, which Rivera was not allowed to finish, as it prominently featured Russian leader Vladimir Lenin in a section displaying a May Day parade, and also displayed John Rockefeller, a sworn abstainer from alcohol, holding a drink. It was replaced by the work "American Progress" by Josep Maria Sert which remains to this day.

-WP