There is a 13C campanile, a bronze door (1179) signed by Barisanus de Trani, a magnificent pulpit covered in mosaics of motifs and fantastic animals (1272), an ambo decorated with green mosaics depicting Jonas swallowed and then spat out by the whale, a crypt containing a museum with mosaics, sculptures and a silver head-reliquary (St Barbara kindly provided the relics): surely all this is worth a look?