Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Surreal riveted sea forts once protected the Kent shores from German attack.

No one is sure what to do with this WWII shipwreck that sits at the bottom of the Thames, still loaded with tons of explosives.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Science fiction's grandfather has a fittingly marvelous tomb.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

France's most famous cemetery, with some of its most curious tombs.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

A beautiful and classically designed villa, with an hourly infestation of monsters.