Churches and places of worship Cattedrale SS. Nazario, Celso e Vittore Consecrated on 15 May 1076, it was built on the remains of an ancient Roman pagan temple. Several times remodeled over the centuries, it has a beautiful neoclassical façade. Inside it houses remarkable eighteenth-century stuccoes and a crypt, dedicated to San Casto, dating back to the XI-12th century