125 West 55th Street

125 West 55th Street, also known as Avenue of the Americas Plaza, is a 23-story, 575,000-square-foot (53,400 m) office building located on 55th Street between the Avenue of the Americas (Sixth Avenue) and Seventh Avenue in Midtown Manhattan, New York City. The building also has an entrance at 120 West 56th Street, across the street from the Thompson Central Park New York Hotel.

The facility, with 570,000 square feet (53,000 m) of rentable office space, was developed by The Macklowe Organization. The building, designed by Edward Larrabee Barnes and John MY Lee Architects, has 23,000-square-foot (2,100 m) floorplates. The second floor of the building houses Air France's United States executive offices. Until 2024 Macquarie Bank housed its New York representative office in the building. Boston Properties currently owns and manages the building. The building also houses iHeartMedia corporate offices, Premiere Radio Networks and the company's New York radio stations. The iHeart subsidiaries Katz Media Group and Triton Media are also located in the building.