The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A stunning landscape of bunkers that once stored chemical weapons.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

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

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

The Grand Canyon of Texas.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

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

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Enormous lake at the bottom of a unique cave system.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

A man's home is his castle.

The largest self-built castle in the U.S., six decades in the making.

This iconic science fiction house still looks like something from the future.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.