Terminal Tower is a 52-story, 235 m (771 ft), landmark skyscraper located on Public Square in downtown Cleveland, Ohio. Built during the skyscraper boom of the 1920s and 1930s, it was the second-tallest building in the world when it was completed. The Terminal Tower stood as the tallest building in North America outside of New York City from its completion in 1930 until 1964. It was the tallest building in the state of Ohio until the completion of Key Tower in 1991. It is part of the Tower City Center mixed-use development, and its major tenants include Forest City Enterprises, former owner of the building, which maintains its corporate headquarters there, and Riverside Company.