The Basilica of Santa Maria degli Angeli e dei Martiri has Roman origins. It was built above the central hall of the Diocletian Baths complex. The sacred building was combined with the baths. It consists of a circular vestibule, an ancient bath, 8 red granite columns and high vaults, and still retains its rectangular hall. with a length of more than 90 meters; Concerts are also held there from time to time.