Hundreds of hidden passageways weave through the old quarters of Lyon.

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

Science fiction's grandfather has a fittingly marvelous tomb.

One of the greatest maze designer’s greatest mazes.

Statue of death tucked in the University of Medicine courtyard.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

A mechanized clock where a man fights off a dragon, crab, and rooster.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The oldest stone house in Paris was built by its most famous alchemist.

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.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.