Cathedral of St. Nazarius, St. Celsus and St. Victor

The Cathedral of St. Nazarius, St. Celsus and St. Victor is a baroque church with three naves separated by pillars supporting pointed arches and decorated with 18th-century stucco ornaments. Beneath the main level, the crypt holds seven smaller naves supported by ancient columns and contains medieval frescoes.

Construction began in the 11th century and was consecrated in 1076, as confirmed by a stone inscription dedicating it to Saints Nazarius and Celsus. Archaeological work uncovered Roman temple remains beneath the structure, dedicated to the goddess Diana.

The cathedral's dedication to three saints reflects local devotion, visible in the religious artworks and objects placed throughout the spaces. The crypt especially shows how medieval believers shaped the sacred areas beneath the main structure.

Access is typically available in the morning and early evening, making it easy to plan a visit. The interior spaces are relatively compact, so a short tour is enough to see all areas including the crypt.

Hidden beneath the arches and altars lies a story reaching back to Roman times. The temple of Diana, marked by an inscription still visible today, shows how faith and buildings became connected to the same ground across centuries.