Lever House is a glass-box skyscraper at 390 Park Avenue in Midtown Manhattan, New York City. Built in the International Style according to the design principles of Ludwig Mies van der Rohe, the building was designed by Gordon Bunshaft and Natalie de Blois (design coordinator) of Skidmore, Owings and Merrill. Completed in 1952, it was the second curtain wall skyscraper in New York City. (wikipedia.org)