Historic medieval fortified city in southwest France.

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

A Gothic cathedral created from volcanic rocks.

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

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

A font of vintage porn on the silver screen.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

How did a French journalist’s grave become the sexiest statue in the cemetery?

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A subterranean shelter remains intact under a busy Paris railway station.

A unrivaled and rather horrifying collection of wax dermatological models.

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

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

The largest medical and anatomical collection in France lies hidden from the public.

Indents in the pavement are all that remain from a grisly death machine in Paris.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

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 museum of magic with a Sadist past.

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