Walls, towers and gates Torre Medievale The Medieval Tower was built in the fourteenth century with the function of defense and warning in case of danger. At first, the building was part of a fortification which no longer exists today. The Tower has a square structure, which was accessed by a retractable staircase. In 1951, it underwent some changes: an entrance was opened at the base and a clock was placed on the façade. Today, the Tower performs a civic function.