30 Rockefeller Plaza 22nd tallest in New York City and the 47th tallest in the United States. It stands 400 feet (122 m) shorter than the Empire State Building. 30 Rockefeller Center underwent a $170 million floor-by-floor interior renovation in 2014. The construction of Rockefeller Center occurred between 1932 and 1940 on land that John D. Rockefeller Jr. leased from Columbia University. The Rockefeller Center site was originally supposed to be occupied by a new opera house for the Metropolitan Opera. By 1928, Benjamin Wistar Morris and designer Joseph Urban were hired to come up with blueprints for the house. However, the new
Rockefeller Center approval of the complex's status, the commission wrote, "Rockefeller Center ranks among the grandest architectural projects ever undertaken in the United States". The buildings became a National Historic Landmark two years later. The United States Department of the Interior wrote in its report that the center was "one of the most successful urban planning projects in the history of American architecture". Columbia University was not making enough money from Rockefeller Center leases by the 1970s, since a series of negotiations with Rockefeller Center Inc. (now Rockefeller Group) had effectively reduced the annual lease payment to $11 million. The university's funds