A historic town sits upon the site of a long-lost 18th-century trading community.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Looming communist pillar with a Czech twist.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Cold war icon and onetime "hole" in the iron curtain.

One of downtown Berlin's last reminders of its Communist past.

Berlin's old airport.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The most visited, and possibly most controversial, museum in Germany.

Near the mouth of the Yodo River, this museum offers visitors six floors of hands-on learning about Osaka's raw sewage.