This monumental fortress is the oldest remaining example of Mudéjar military architecture in Spain. Built by Moorish craftsmen at the end of the 15C, it is made up of three walls with polygonal corner towers, round towers on the sides and a sturdy keep. The keep and chapel, which are open to visitors, contain some fine wooden sculptures from the Romanesque period. From the roof terrace, a highlight of the visit, enjoy extensive views of the fortified complex and the village of Coca.