The Castillo de San Gabriel is a historic fortress located in Lanzarote, one of the Canary Islands, Spain. Built in the late 16th century, it was constructed to protect the island from pirate attacks. The castle features a rectangular layout and is made of volcanic stone, reflecting the island's unique geology. Today, the castle houses the Museum of Contemporary Art, showcasing various works by local and international artists. Visitors can explore the fortress's architecture and enjoy panoramic views of the surrounding area, making it a popular tourist destination on the island.