Explore the dark underground corridors of this graffiti-covered former military fortification.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

It was once used as a classroom to teach mining skills to local high school students.

After this former brothel closed, its interior remained almost frozen in time.

The mayor made the declaration in 2004.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

A black cottonwood gets a second life as a home for books.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Home to the deepest rift anywhere on Earth.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The largest source of fossilized insects anywhere.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

Considered by many to be one of the most dangerous highways in Alaska.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.