Kinlochaline Castle is a 12th-century Scottish castle located at the head of Loch Aline, positioned strategically for coastal defence. Four stories tall, 43 by 34 feet, with walls that are 10 feet thick blocks of rare sandstone. The castle was burned in 1644, when it was besieged by Alasdair Mac Colla during the Wars of the Three Kingdoms. The castle was attacked by the Archibald Campbell, 9th Earl of Argyll in 1679, during a feud. Kinlochaline was abandoned about 1690.
Re-construction in the late 1990s was overseen by Historic Scotland. The castle is now a residence.
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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.