Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

A county library in rural Ohio houses one of the finest mineral collections in the world.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

Derelict airplane bodies serve as both home and income for three Thai families.

The last operating synagogue in Afghanistan is run by Zablon Simintov, the last remaining Jew in Afghanistan.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

One architect's organic, human-centric design has been fully realized in this alien art house.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Every last book in this bookstore is signed by the author.

Like something out of a bad acid trip, this Ukraine hallway has been covered in hallucinatory phantasmagoria.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

Wax models of disease and deformity are on display at this German medical museum.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

A beautifully detailed Victorian house designed to be easy to flee, built by a man haunted by fire.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A naturally occurring tunnel in this Nordic mountain makes it look like it's been shot.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.