Rare collectibles from automated musical instruments to 250 unique automobiles.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

The art and history of the velvet painting are on full display in this Los Angeles museum.

Handmade treasures from around the world.

San Francisco Bay's ghost town.

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

This impressive tunnel was dug entirely by hand over the course of 36 years.

This old mining town, deep in the California desert, has a year-round population of one.

Hidden in the back of a disused small town hotel is a dive bar shellacked with over a million pennies.

A popular tourist cave with a dark past.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The legendary building that needed ghostly approval before being built.

Every equinox this Maya pyramid puts on a spooky ancient light show.

A terrific purveyor of natural history objects and curios.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

A battle between nature and architecture in the Cambodian jungle.

Less a museum than a bizarre fantasy world created by artists and engineers.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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