LET US NEVER FORGET - Hijacked United Airlines Flight 175 from Boston crashes into the south tower of the World Trade Center and explodes at a. on September 2001 in New York City. (Photo by Spencer Platt/Getty Images)
Rockefeller Center ~ New York City ~ New York ~ It is a complex of 19 commercial buildings covering 22 acres (89,000 m2) between 48th and 51st streets in New York City. Built by the Rockefeller family, it is located in the center of Midtown Manhattan, spanning the area between Fifth Avenue and Sixth Avenue. It was declared a National Historic Landmark in 1987.