Castillo de Aledo stands on a commanding ridge near the Sierra Espuña mountains in Murcia, rising 125 meters above the Guadalentin valley. Built by the Almoravids in the 11th century as a defensive stronghold, the fortress is constructed of distinctive reddish tamped earth that adapts remarkably to the uneven terrain. Originally captured and lost multiple times between Christian and Muslim forces, it was finally secured by Christians in the late 13th century and subsequently rebuilt. Today, the well-preserved square keep dating from the 11th century remains the castle's most recognizable feature, showcasing the medieval engineering that once protected this strategic mountain position.