The present castle at Torri del Benaco (Castello Scaligero) was built by Antonio della Scala in 1383 to the ruins of a older castle dating back to the Xth century. The West Tower of older castle still remains. In 1760 the second curtain wall was torn down to make way for the Lemon Grove. The decline of the castle ended in 1980 when the Commune of Torri started complete restoration under the architect Rudi Arrigo.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.