The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Super-heavy Nazi architectural experiment.

The final resting place of many of Germany's most famous communists.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

An Orwellian sculpture with eyeball cameras watches passersby.

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

Macabre astrological automaton clock dating to the late 1400s.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

This spooky statue sits outside a famous Prague theater.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

This monumental work of art symbolizes the coming together of a previously divided city.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

A slice of central Asia in the middle of Berlin.