Successively a Roman municipium, the capital of the Visigothic Kingdom, a fortress of the Emirate of Cordoba, an outpost of the Christian kingdoms fighting the Moors and, in the 16th century, the temporary seat of supreme power under Charles V, Toledo is the repository of more than 2,000 years of history. Its masterpieces are the product of heterogeneous civilizations in an environment where the existence of three major religions – Judaism, Christianity and Islam – was a major factor.
Toledo is one of the Spanish cities with the greatest wealth of monuments. Toledo was declared a World Heritage Site by UNESCO in 1986 for its extensive monumental and cultural heritage.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.