Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Former island in the Aral Sea used to be a top-secret Russian bio-weapons facility.

Salute the leader of the proletariat.

Unrepaired walls from a 1920 anarchist bomb attack.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

One of only two commuter aerial tramways in the United States.

A dilapidated dock tells the story of Titanic's missed arrival.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A crumbling hospital from the 1850s on Roosevelt Island.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This watchtower once presided over the Berlin Wall.

This park celebrates a sister city relationship that survived the Cold War.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

With its mine closed, this old village is starting to resemble a ghost town.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

The former home of Ernst Jünger, an eccentric German novelist, philosopher, entomologist, and psychonaut.

The world's first jet-powered aircraft were assembled by the Germans in this secret factory in the forest during WWII.

Hidden in the forest are the crumbling, graffiti-covered remains of the factory where most of Germany's explosives were produced during World War II.