A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

A famous flea market artist's studio that's full of odds and ends.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

This high desert botanical garden is a unique display of Northern New Mexico's geology.

Thousands of mounted insects, and some live ones, hide within an otherwise ordinary shopping mall.

A sprawling collection of over 106,000 toys from around the world.

Shrine to Japanese water-goblins, complete with their preserved body parts.

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

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

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

A font of vintage porn on the silver screen.

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

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A surrealist timepiece by the artist of melting clocks.

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

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

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

A calico cat named Tama was the wildly popular Super Station Master at this train stop in southeast Japan.

Largest graveyard in all of Japan surrounds a famous mausoleum.

A Catholicism-themed restaurant where sacrilege is on the menu.