Castillo de Oropesa del Mar rises dramatically on a rocky outcrop in the Mediterranean town of Oropesa del Mar, Castellón, with origins tracing to the Islamic period. The fortress was initially constructed by Muslim rulers and subsequently conquered by El Cid in 1090 and King Jaime I in 1233, later passing to the Knights Templar and notable local lords including the Tous family. During the Spanish War of Independence in 1811-1813, the castle endured a devastating siege by French Marshal Suchet, resulting in its near-complete destruction and subsequent abandonment. Today, the castle stands as consolidated ruins offering stunning panoramic views across the Mediterranean landscape and free public access. Its elevated position beside the sea made it a crucial strategic element throughout its long and turbulent history.