A reproduction of earth's many biomes.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

European castle ruins in an American state park are actually the product of death and grief.

A hotel and restaurant serving as the mecca of kitsch.

This quirky curiosity shop takes its cues from the world's bazaars.

The private clubhouse for the members of the Academy of Magical Arts.

Odd outsider art installations surround a Gold Rush-era ghost town.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Tour the sci-fi-esque reality of governmental disease management.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This abandoned amusement park was built on a site with a dark history.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The seamy, underground secrets of Portland's criminal past.

Medicinal spa created with the discharge from a geothermal energy plant.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Continuing the tradition of the dime museum in style.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Elevated freight railway turned wildly successful urban park.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.