Saintly bones pressed into a wax effigy of a Catholic superstar.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

This professional clown's home is an outsider art wonderland.

Beautiful carved tunnels.

Monsters and miniatures are held in equal esteem at this wondrous museum.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Ghosts of France's colonial past.

A Gothic cathedral created from volcanic rocks.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

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

One of the oldest medical collections in Europe focusing on rare surgical instruments.

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

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

Abandoned railway line circling the city of Paris.

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

Providing the soundtrack to the golden years of the Seattle grunge scene.

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Hollowed out cedar log tubs set in an ancient towering forest.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.