For the purposes of this Code, a building or facility, or portion thereof, used for the purpose of entertainment, educational or civic gatherings, or similar purposes including, but not limited to, classrooms, lecture halls, courtrooms, public meeting rooms, public hearing rooms, legislative chambers, motion picture houses, auditoria, theaters, playhouses, dinner theaters, concert halls, centers for the performing arts, amphitheaters, arenas, stadiums, grandstands, or convention centers.