This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

An abandoned town is hidden in Great Smoky Mountains National Park.

The ruins of the "20-year town" lay out among the mountains of Alberta.

These abandoned ruins in the middle of Jaffna have withstood centuries of tumultuous power struggles.

An eerie abandoned gentlemen's club built for British officials during the colonial era.

An abandoned settlement originally established by British colonialists in the Andaman archipelago.

Scattered ruins and a tiny cemetery are all that remain of a failed attempt to colonize the inhospitable Desolate Islands.

This foolish Victorian sea fort was converted to a deluxe hotel.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

Legend says this ancient pagan site can cure all ailments.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The largest necropolis in the Southern Hemisphere.

A small cemetery on a hill overlooking Mbala contains the history of the town's colonial past.

This 1939 grave of a British soldier now receives legions of unlikely visitors.

The final resting place of 19th-century sailors previously banned from being buried within Portuguese Macau.

A cemetery full of exquisite statuary, including a monument to a woman some say died of a broken heart.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

Nature is leading a successful mutiny on this century-old freighter.

The oldest European burial ground in Australia.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

An ancient Incan convent on Lake Titicaca's Island of the Moon.