One Penn Plaza

One Penn Plaza (AKA 1 Penn Plaza) is a skyscraper in New York City, located btw 33rd and 34th Streets, west of Seventh Avenue, and adjacent to Pennsylvania Station and Madison Square Garden. It is the tallest building in the Pennsylvania Plaza complex of office buildings, hotels, and entertainment facilities.

The skyscraper was designed by Kahn & Jacobs and completed in 1972. It reaches 750 feet (229 m) with 57 floors. The tower has three setbacks at 7th, 14th, and 55th floors. From its location on the west side of Manhattan, most south, west and north-facing tenants have unobstructed views of the Hudson River. One Penn Plaza is currently owned by Vornado Realty Trust. It was previously owned by Helmsley-Spear Inc., and the building was sold by Leona Helmsley and her partners for $420 million in the late 1990s.