Tower City Center is a large mixed-use facility in Downtown Cleveland, Ohio, on its Public Square. The facility is composed of a number of interconnected office buildings, including Terminal Tower, the Avenue shopping mall, Jack Cleveland Casino, Renaissance Cleveland Hotel, Chase Financial Plaza, and Tower City station, the main hub of Cleveland's four RTA Rapid Transit lines. The structure was built in 1929 as Cleveland Union Terminal. On March 17, 1976, the complex was added to the National Register of Historic Places.