Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Ghosts of France's colonial past.

This recessed garden protects thousands of mountain plants by creating its own microclimates.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

This 18th-century sundial was designed to calculate the date of Easter each year.

Statue of death tucked in the University of Medicine courtyard.

The narrowest street in Paris.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

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

The former global standard for the exact mass of one kilogram sits under lock and key outside Paris.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This emotive sculpture was originally created for the 1878 World's Fair.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

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

This Parisian café sticks almost exclusively to an ethos of reuse.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Three million year old fossils are exposed for all to see on this Icelandic shore.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Europe’s most powerful hot spring supplies the surrounding region with hot water.

Pick up this rock and become an instant legend.