Castrocalbón Castle is an ancient fortress located in the town of Castrocalbón, in the province of León. Built in the Middle Ages, the castle has gone through various phases of construction and destruction over the centuries. Today, only a few remains remain, such as a rammed earth wall plastered with mortar and an ashlar arch. In the past, the castle had several archways and walls that have been compared to the Berber kasbahs of the High Atlas.