520 Park Avenue, well on its way to being the tallest skyscraper on the Upper East Side, is putting its final crowning members in place, CityRealty reports. The developer of the 54-story tower just off Park Avenue at East 60th Street is the multi-generational Zeckendorf real estate dynasty who brought us 50 U.N. Plaza, 15 Central Park West and the neighborhood-transforming Worldwide Plaza and Union Square's Zeckendorf Towers.
Find out more