Statues from the early 15th century. Jaccopo della Quercia, Saint Nicholas, 1419-1424. Jaccopo della Quercia, Saint John the Baptist, 1419-1424. Model of the Duomo floor mosaics. Drawings of the floor mosaics of the Duomo. Reliquary of San Clemente, 1720. Reliquary of San Clemente, 1720. Reliquary of San Clemente, 1720. DuomoPalazzo Pubblico Labels