World's first "penitentiary," meant to be humane, drove men insane.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Turnip-shaped island just off the Michigan shore in Lake Huron.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

World's largest Christmas store.

This massive subterranean fissure is known as the "underground Grand Canyon."

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

This derelict superstructure was a very important warning system for the Soviet military.

This attraction was abandoned after the Chernobyl disaster.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

The world's most remote airport.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The largest stone moai on Rapa Nui.

This was once the center of the Birdman cult, and is now a World Heritage Site.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.