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
Laurance Rockefeller involved in healthcare. Over the years his investment interests ranged also into the fields of aerospace, electronics, high temperature physics, composite materials, optics, lasers, data processing, thermionics, instrumentation and nuclear power. Venrock was a limited partnership investment company financed by members of the Rockefeller family and a number of the institutions with which the family had longstanding philanthropic ties, among them the Museum of Modern Art, Rockefeller University, and Memorial Sloan-Kettering Cancer Center. Rockefeller's major interest was in aviation; after the War, he became friendly with Captain Eddie Rickenbacker, who had triumphed in many dogfights over Europe. Rockefeller had learned