The official residence of the governor of Gibraltar, originally a Franciscan convent, is home to a few curiosities. Notice anything strange about the wooden doors on the eastern wall of the Banqueting Hall? They used to be tables which, in turn, were made from wood salvaged from Spanish ships wrecked during the Great Siege (from 1779 to 1783)—the repaired gunshot holes might give them away. In this room, under glass, you can also see the last working keys to Gibraltar’s gates. Legend has it that this 16th-century building is haunted by the ghost of a nun sent to the convent against her wishes.