Besides the Ibero-American Theater Festival, the largest theater festival in the world, the city has forty-five theaters; the principal ones are the Colon Theater, the newly built Teatro Mayor Julio Mario Santo Domingo, the National Theater with its two venues, the traditional TPB Hall, the Theater of La Candelaria, the Camarin del Carmen (over 400 years old, formerly a convent), the Colsubsidio, and a symbol of the city, the renovated Teatro Jorge Eliecer Gaitan, León de Greiff Auditorium (home of the Bogotá Philharmonic Orchestra), and the Open Air Theater "La Media Torta", where musical events are also held.