Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

The famous winding walk at Chartres is surrounded in mystery and myth.

A unrivaled and rather horrifying collection of wax dermatological models.

One of the greatest maze designer’s greatest mazes.

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

Egyptian Revival movie palace abandoned for decades and restored in 2013.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

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

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

A curious collection dedicated to human and animal anatomy and pathology.

Museum preserving torture methods from the past.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

Spend your honeymoon where the Devil had his wedding.

Flamboyant architecture from the turn of 20th century.

A crucified and bearded female saint.

A saintly relic hidden in a Prague church basement.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

Walk through Czech history in Prague's largest graveyard.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Countless grotesque faces stare out from this eerie Prague art wall.