This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

This impressive system of tanks was used to store drinking water as long as 2,000 years ago.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

Walk the same tracks that once ferried Gilded Age aristocrats to their vacation destinations.

Stalin's prisoner-built rail line sits in ruin, never having a single car ride its tracks.

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

Launch site for nuclear war against Western Europe.

Abandoned Nazi train station turned underground astroparticle laboratory.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Stroll through a wonderland of stupendous moss-covered trees.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.