The museum's itinerary is developed in four sections: • The Cloister (built between the 1266 and 1268); • The Wall paintings (mural paintings and frescoes, dating from the 13th century to the 14th century); • The Cathedral Treasury (precious liturgical objects and sacred paraments, belonging to the Treasure of the Cathedral); • The Paintings and sculptures (preserves valuable paintings and sculptures).
Section I Along the galleries of the cloister, works from the cathedral are preserved, including: • Greek sarcophagus with
Rape of Proserpine (first half of 2nd century AD). • Roman sarcophagus with Marriage of
Peleus and
Thetis (second half of the 2nd century AD), reused in the early Middle Ages as the tomb of Archbishop Cesarius de Alanio. • Remains of Romanesque
ambon (1174 –1202) decorated with mosaics of the
Cosmatesque school. ==Gallery==