Stairs often replace streets on the steep slopes of this old mining town.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A spiritual vortex among the red rocks in Sedona.

America's only nuclear missile silo open to the public.

Despite a recent paint job, the factory still sits empty.

A reproduction of earth's many biomes.

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

This odd little museum holds exhibits on everything from blacksmith equipment to hair jewelry.

Outside San Francisco lies a small clown cemetery and memorial.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

A living time capsule of the 1960s Richardson Bay water-front.

A comprehensive collection of Pez dispensers.

9,000 square feet of vintage and modern mechanical toys, dioramas & sideshow curiosities.

A store that sells all manner of bones, insects, and animal curiosities.

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

A 19th-century California philanthropist is entombed beneath the telescope he funded.

The model behind the iconic 3D test model.

Go deep on these fascinating fish, and get a bonus lesson on the importance of marine conservation.

The world’s oldest active sailing ship.