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

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

The only theatre in the world constructed specifically for sound movement.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The world's only museum devoted to the wonders of fluorescence.

An enormous, inside-out glass globe built in 1935.

A kaleidoscopic warehouse-maze of handmade neon signs.

A crumbling hospital from the 1850s on Roosevelt Island.

Rippling sand dunes frozen in the Arizona rock.

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

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Templar knights fleeing persecution are said to have left this sword in stone as a landmark in 1307.

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

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

Hundreds of trees made from glass bottles make up this forest on Route 66.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Each winter this underground cave forms a dazzling ice palace.

A winding, blood-red tunnel of hardened lava navigable by foot.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.