Rockefeller Center

 was a major landmark in New York City.

It was situated in Manhattan.

A secret auction of extraterrestrial artefacts took place in the Ebonite Rooms at the Rockefeller Center. (COMIC: The Fountains of Forever)

Ace and Hex skated at the Rockefeller Center in 2005 while the Seventh Doctor watched them. (PROSE: Presence)