In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Copenhagen's celebrated theme park and gardens.

Breathtaking and huge 430 year old maps of Italy.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

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

Tiny memorials honor individual victims of the Holocaust.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

Metro station with a claim to rock n' roll fame.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

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

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Go surfing on this urban wave, "hacked" by local surfers.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Berlin's old airport.

Floating swimming pool within a moored vessel.

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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Each time a baby is born in Ghent, these streetlights flash in silent celebration.