Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

This plaque commemorates the call between Alexander Graham Bell and Thomas A. Watson.

Scotland's first Masonic lodge may also be the oldest in the world.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

The eerie ruins of this feudal fortress witnessed the execution of 60 conspirators in 1387.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

This modern monument to pagan belief looks like it was transported straight from ancient times.

The ruins of the movie ranch owned by actor and stuntman Ray "Crash" Corrigan.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

Formerly frequented by Hollywood stars and now open for tours.

World's largest collection devoted to one fruit.

Where NASA's satellites and rovers phone home.

These lush groves of fan palms rise up like oases out of southern California's Colorado Desert.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

The wild west is still alive and well at this authentic mining town watering hole.

The ruins of the castle that chemicals built.

Colorful Native American paintings are hidden within this small cavern.

Remnants of the United States's largest accidental oil spill still mar a California valley.

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

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.