The cathedral is built directly on the foundations of a 4th-century Christian basilica, which itself replaced a 4th-century BC Greek temple.
The distinctive dodecagonal drum supporting the dome is a rare architectural feature for the period.
During World War II, the cathedral sustained significant damage from an aerial bomb, requiring extensive post-war restoration.
The two stone lions guarding the main entrance originate from the original 12th-century structure.
It holds the 'Madonna del Duomo,' a 12th-century Byzantine-style icon believed to have opened its eyes during the French occupation in 1796.
The crypt contains the tomb of Saint Cyriacus, a bishop of Ancona martyred in the 4th century.
Cattedrale di San Ciriaco, also known as the Duomo of Ancona, sits atop Colle Guasco, overlooking the Adriatic Sea. The structure is a synthesis of Romanesque, Byzantine, and Gothic architectural elements. It was built on the site of a 4th-century basilica and an earlier Greek temple dedicated to Aphrodite. The cathedral features a characteristic Greek cross floor plan. Its central dome, added in the 13th century, is one of the oldest in Italy. The façade is constructed of white and rose-colored stone from Mount Conero. The interior houses the remains of Saint Cyriacus, the patron saint of Ancona. The hilltop location provides panoramic views of the city's harbor and the surrounding Adriatic coastline.
The edge of the Piazzale del Duomo looking down over the port and the Adriatic sea.
Wear comfortable walking shoes, as the cathedral is located on a steep hill.
Bring a camera for the wide-angle views of the Ancona port from the Piazzale del Duomo.
Visit the lower crypt to see the archaeological remnants of the earlier temple foundations.
Avoid arriving during liturgical services when tourist access may be restricted to the aisles.
May close for short periods during lunch hours; restricted access during wedding ceremonies or religious rites.
Modest attire is required; shoulders and knees must be covered. Maintain a quiet, respectful tone inside.
