A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Wax models of disease and deformity are on display at this German medical museum.

The unusual sculptures are believed to be powerful political symbols.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

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

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

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

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

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Former headquarters of the KGB.

Gargantuan home of Russian science.

Sweden's oldest animated sign is still lighting up the skyline today.

It houses the remains of a 17th-century version of the Titanic.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.