In this town's main square resides a statue of none other than the 43rd President of the United States.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Bronzes and busts that once stood in the city's main squares are now relegated to a small hidden courtyard.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

A naturally beautiful, seemingly bottomless deep blue spring.

New Plymouth, Idaho is the only U-shaped town in the United States.

This oddity shop contains everything from antique tools to a human skeleton.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

An Idaho legend carved out a cave village with his own two hands.

Home to a timed geyser created by complete accident.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

A few dilapidated structures are all that remain of this deserted former silver mining town.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

Home to the deepest rift anywhere on Earth.

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

See just what life was like in a 19th-century prospecting town.

When in Idaho, sleep in a giant potato.

This museum glorifies the humble potato.

"There's nothing there," and other lies the KGB told us.

This 16th-century cemetery became a recreational park during the Soviet occupation—today it's a little bit of both.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

Its collection offers a glimpse into the Russian Old Believers' centuries-old way of life.