The Mann Center for the Performing Arts is a nonprofit performing arts center located in the Centennial District of Philadelphia's West Fairmount Park, built in 1976 as the summer home for the Philadelphia Orchestra. It is the successor in this role to the Robin Hood Dell outdoor amphitheater, where the Philadelphia Orchestra had given summer performances since 1935. The Mann's campus includes an amphitheater, TD Pavilion at the Mann, and a smaller open-air stage, the Highmark Skyline Stage.