The Keystone Building is a high-rise building located in downtown Boston, Massachusetts. The building stands at 122 m with 32 floors, and was completed in 1971. In height, it is tied with Harbor Towers I as the 27th-tallest building in Boston. The architectural firm who designed the building was Emery Roth & Sons. The Keystone Building is notable for its distinctive rounded corners and grooved façade.
Emery Roth & Sons Architects