Gibraltar is a British overseas territory located at the southern tip of Spain. It is a small peninsula that is bordered by Spain to the north and the Mediterranean Sea to the east and south. Gibraltar has an area of only 2 square miles and is famous for its Barbary macaque monkeys and dramatic limestone cliffs and caves. Some of its main attractions include the Moorish Castle, St. Michael's Cave, Cable Cars up to the Top of the Rock, and the Great Siege Tunnels.