Visit Failaka Island

Ruined British slave fort on an island in the Sierra Leone River, from which thousands were shipped to the Carolinas.

Nubian Aswan’s feluccas and islands, plus the Temple of Isis moved stone by stone to escape the rising Nile.

Jungle ruins of a 17th-century Jewish plantation town, with the oldest synagogue remains in the Americas.

Crumbling stone caravan town on the old salt and gold routes.

Sail through a narrow gap into the flooded caldera of an active volcano, past a ruined whaling station and beaches warm enough to dig a hot bath.

The "museum without walls": grassy royal burial mounds, the Cheomseongdae observatory and Silla-dynasty treasures across the town.

Ancient rock-hewn town on the Silk Road, inhabited from the Iron Age.

Ceremonial capital of the Persian Empire.