Learn about Iceland's hidden folk at this school dedicated to the study of elves.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

Hidden in the back of a disused small town hotel is a dive bar shellacked with over a million pennies.

In the country around Buttonwillow, California, a marker commemorates a revealing moment in the story of a water colony from the fictional Kcymaerxthaere that sought independence.

The art and history of the velvet painting are on full display in this Los Angeles museum.

The world's northernmost ice hotel.

Cold storage for agricultural biodiversity.

Two stunning 17th-century libraries and a cabinet of curiosities.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

A ruined hotel with an unlucky history and an eerie present.

Hot springs monkey spa in the middle of Hell's Valley.

Once the most densely populated place in the world, this island is now a ghost town.

A Museum of Psychiatry in a still-operating mental institution.

Abandoned Nazi train station turned underground astroparticle laboratory.

Concrete construction materials turned into a fashionable capsule hotel in rural Mexico.

A taxus-tree to which Julius Caesar reputedly tied his horse.

Christ's blood preserved in a Belgian town.

Cozy basement bar sports an inventory of over 2,000 beers.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The key to turning shifting dunes into the green oasis of Golden Gate Park.