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

A museum of magic with a Sadist past.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

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

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 vast, legendary catacombs hold secrets much stranger than stacked bones.

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

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

This public space is speckled with the eerie remnants of a defunct amusement park.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

This picturesque Victorian ghost town was once a thriving mill community.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

This little museum in the town where zombies were born celebrates the living dead.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.