Twisted buildings adorn the banks of the Rhine river.

This futuristic German television spire is actually the world's largest digital clock.

A coin-operated model railway tucked inside a busy train station

A naturally mummified 2,000-year-old man.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

Stockholm's deepest subway station is also a stunning ecological wonder.

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

Tallest - but not most powerful - wind turbine in the world.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

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

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

Enter the cabin of a life-sized Hindenburg replica.

This former steel and coal plant is now a neon-lit industrial fantasia.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

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

This "floating railway" is one of the world's oldest monorail systems.

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.