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

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

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

A museum which takes visitors to the côté obscure of Paris.

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A modern-day Lascaux cave underneath Paris.

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

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

A surrealist timepiece by the artist of melting clocks.

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

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

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

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

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

Seven people are buried in the middle of what's now a movie theater parking lot.

Hundreds of iconic jazz records were made in this church-like space.

A surprising museum of 20th-century technology.

New Jersey's last historic covered bridge was rebuilt from pieces of the original 19th-century structure.

An unusual assortment of steerable wooden sleds is on display in a library in New Jersey where they were first invented.