Mysterious glowing orbs float through the desert night.

A Prada store in the West Texas desert that is never open for business.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

These unique volcanic rock formations offer the perfect opportunity to camp and hike.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

Inside this store, a mysterious statue draws visitors from the world over.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.

Inside this garden, visitors are offered a glimpse into how inhabitants of the region survived centuries ago.

This comprehensive collection features Native American artifacts dating back centuries.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Tiki luxury on Nob Hill.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

From the Difference Engine to the Cray-1, all under one roof.

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

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

A Memphis park where you can walk the whole Mississippi River in one go.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.