Peñíscola Castle is a historic fortress located in the coastal town of Peñíscola, Spain. Built in the 14th century, it was originally constructed by the Knights Templar and later expanded by Pope Benedict XIII, who made it his residence. The castle is perched on a rocky headland, offering stunning views of the Mediterranean Sea. The castle features impressive stone walls, towers, and a well-preserved keep. It is surrounded by a charming old town with narrow streets and whitewashed buildings. Today, Peñíscola Castle is a popular tourist attraction, showcasing its rich history and architectural significance.