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Iron Age hill fort, occupied from 3rd century BC and abandoned in 6th century AD when the inhabitants moved to Brigantium. Many of its findings are displayed in Castelo de San Antón.
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Small science museum with planetarium in a park pavilion.
16th century castle on an island, now connected by a broad avenue. Within is a museum of castle history and weaponry.
Built late 12th century in Romanesque style, much modified down the years.
Displaying weapons, uniforms, maps and so on.