Fodor's Expert Review Castillo de San Miguel

A Roman fortress once stood here, later enlarged by the Moors, but the castle's present aspect, crowning the city, owes more to 16th-century additions. The building was bombed during the Peninsular War in the 19th century, and what was left was used as a cemetery until the 1990s. You can wander the ramparts and peer into the dungeon; the skeleton at the bottom is a reproduction of human remains discovered on the spot.