Christened by a 1909 opening performance of Aida, the Teatro Alcalá houses a treasury of Romantic-era art. Above the foyer, a sumptuous marble staircase rises to a bas-relief medallion allegorizing the triumph of art. Inside, soaring above the orchestra, a heavenly choir of muses, representing the arts, decorates the ceiling.
From the back of the cathedral , head right one block along Independencia to the corner of Independencia and Cinco de Mayo to get to Alcalá theater (900 Independencia, tel. 951/516-8312 or 951/516-8344, 10 a.m.–4 p.m. daily, admission free except during events).
Check at the theater box office for a list of performances, which customarily include classical ballet, folkloric dance, opera, and orchestral music.