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

Twisted buildings adorn the banks of the Rhine river.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

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

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

A wunderkammer of mysterious objects and stories.

A 12th-century fortress containing some of Berlin's oldest buildings.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

King Ludwig I's collection of beautiful women.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

Puppet theater and museum holding a collection of more than 300.

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

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

A restaurant and observation deck built in a unique broadcasting antenna.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The footprint of a frustrated devil in Munich's Cathedral.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

One man's personal kunstkammer, museum and shop.