Campanone is the tower in the middle of this picture. At 56 meters, it was built in the 12th century and is still tallest tower in the old city. Visitors can climb up to the tower. On the right with large arches is Palazzo della Ragione which was the seat of medieval government. The long pale building under the tower is Palazzo del Podestà, the residence and office of Podestà (chief magistrate) from the 12th–15th centuries.