Lever House, located at 390 Park Avenue designed by Gordon Bunshaft of Skidmore, Owings and Merrill. Built in 1952, It is the quintessential and seminal glass box International Style skyscraper. It is the pioneer curtain wall skyscraper in New York City.
The building was designated a landmark in 1982
the building was completely restored beginning in 1998 with a new curtain wall system that appears identical to the original.
lever house in 2007
David Shankbone / source of photograph Wikipedia