The moated Glatt castle one of the few preserved water castles in the Germany and one of the oldest Renaissance castles in southern Germany. It was built and owned by the Neuneck family from the 13th century until 1671. The 13th century castle was converted into a Renaissance style in 1533-1540 by Reinhard von Neuneck. Today it hosts a museum center.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.