Castillo de Alcalá de los Gazules rises above the town of Alcalá in Cádiz province, its name deriving from the Arabic Qalat at Yazula, referring to the Gazules family who inhabited the region. Originally constructed by Muslim forces and later captured by Alfonso X in 1264, the fortress was partially destroyed during the 19th-century War of Independence. Today, its lone tower and surviving wall segments stand as poignant reminders of medieval conflict. Despite partial ruin, the castle offers breathtaking views of surrounding countryside, cork oak forests, and rolling hills, making it a compelling destination for history enthusiasts exploring Andalusia's defensive heritage.