The Kasbah is the fortified quarter crowning the highest point of the Tangier medina, a maze of whitewashed lanes overlooking the port and the Strait of Gibraltar. At its heart stands Dar el Makhzen, the former sultan's palace built in the early 18th century, which since 1922 has housed the Kasbah Museum of Mediterranean Cultures. Its two courtyards with marble fountains and arabesques display Moroccan crafts and antiquities from Roman sites such as Volubilis and Lixus.