UNITED STATES - NOVEMBER 01: The building located at 350 Park Avenue that occupies the entire block front of Park Avenue between 51st and 52nd Streets is seen in New York, Wednesday, November 1, 2006. Vornado Realty Trust agreed to buy 350 Park Avenue in Manhattan for about $542 million, paying more than $1,000 a square foot to expand its presence in New York City's highest-priced office district. (Photo by Stephen Hilger/Bloomberg via Getty Images)