Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

This tiny hotel perched atop a 50-foot tower really puts things into perspective.

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

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

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

Home to the "Rat King" of Nantes and other wonders of the natural world.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

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

A unrivaled and rather horrifying collection of wax dermatological models.

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

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

The celebrated eyesore created by starry-eyed sweethearts.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

Former hunting lodge of a duke who was an avid collector of impressionist works.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

An odd museum dedicated to French fakes.