 The bell tower, with a height of 45 m, was built in the 13th century in Romanesque style.The Cathedral Museum, in the 17th century cloister, is notable particularly for its fine Flemish tapestries of the 15th–17th centuries depicting scenes from the Trojan War, Hannibal's Italian campaign, and the life of Tarquin the Etruscan king of Rome.Another treasure is a Late Gothic monstrance of 1515.