NEW YORK, NY - NOVEMBER 13: Outgoing Mayor of New York City Michael Bloomberg speaks at the opening ceremony of Four World Trade Center, the first tower to open at the original site of the World Trade Center, on November 13, 2013 in New York City. The building was designed by Fumihiko Maki, has 72 floors, is 978 feet tall and offers 2,500,000 square feet of space. (Photo by Andrew Burton/Getty Images)
