Impressive 12th century castle overlooking the town. The castle was built to defend against reconquest by the Moors, and this did indeed happen on 2 occasions. The castle also contains a 15th century palace within its walls

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One of the last great Rococo buildings to be built in Europe. The sumptuous 18th century palace was built as a summer retreat for Dom Pedro of Braganza but later became the official royal residence

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