The ancient latrines of the Greeks, in all their public glory.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

This ancient city - home to nine civilizations - is soon to be buried under 200 feet of water.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The sunken structure looks like the victim of a catastrophic flood.

The deserted pirate-themed restaurant still entices explorers.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

A bike train runs along a disused railway line through the tranquil French countryside.

The encased skull that is widely believed to belong to St. John the Baptist.

A tiled, multi-level garden of survival in Lyon.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This collection of French root art looks like an indoor fairy wonderland.

Since ancient times these picturesque springs have been providing bathers with healing waters.

There has been an astronomical clock on this spot since the 14th century.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

A chapel on a volcanic core, marking the end of a successful journey.

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

A self-built mosaic house and sculpture park.

The world's tallest bridge is also possibly the most elegant.