This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

A collection of huge Pre-Colombian structures in Alabama.

A museum dedicated to the lovable crime couple Bonnie & Clyde, just a few miles away from the site of their early demise.

The concrete skeletons of an abandoned Swedish town hide among the trees.

Waterway populated with abandoned projects, including a submarine.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This interpretive path lets you get up close and personal with dinosaur bones.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Odd outsider art installations surround a Gold Rush-era ghost town.

This amazingly preserved Gold Rush town is a historian's dream.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

If astronomy had a ghost, it would look like this observatory.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

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

Abandoned silver mine strewn with wrecked and twisted structures.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Four-story concrete hotel never opened to customers.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.