This enchanting castle overlooking wild, hilly countryside from above Sigüenza, is now a parador. The structure was founded by the Romans but rebuilt at various later periods. Most of the current structure was erected in the 14th century, when it became a residence for the queen of Castile, Doña Blanca de Borbón, who was banished here by her husband, Pedro the Cruel. During the Spanish Civil War (1936–39), the castle was the scene of fierce battles, and much of the structure was destroyed. The parador's lobby has an exhibit on the subsequent restoration, with photographs of the bomb damage. Non-guests can also visit the dining room and common areas. If you've got half an hour or so to spare, there's also a lovely walking path around the hilltop castle, with a 360-degree view of the city and countryside below.