3 Park Avenue

3 Park Avenue is an office building located on Park Avenue at 33rd Street in New York City, built in 1976 by Cohen Brothers Realty. The 554-foot-tall (169 m) building was designed in the International Style by Shreve, Lamb and Harmon, designers of the Empire State Building, and replaced Clinton & Russell's armory of 1905, built for the New York National Guard's 71st Regiment.

The first 11 floors of the 41-story building house Norman Thomas High School, H.S. 620 in the New York City public school system.

The building is notable for its bright orange brick and 30-story illuminated tower, which lies at a 45-degree angle to Manhattan's street grid.

The building is the home to many engineering organizations including IEEE (17th floor), AIChE (19th floor), and ASME (23rd floor). International advertising company Carat, The Seavey Organization, Dalton Management Company, Inner City Broadcast Holdings (WBLS/WLIB) and TransPerfect are also major tenants. The WLIB studios were the original home of the Air America radio network and the building is the setting for most of the documentary "Left of the Dial".