The last remnants of a massive medieval wall that once encompassed the city of Berlin.

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

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

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

This wooden hotel is a temple to German sustainability and forest conservation.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

Twisted buildings adorn the banks of the Rhine river.

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

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

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

A fearsome dragon clings to a corner of Munich's city hall.

The prototype for all Nazi concentration camps.

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

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The fairy tale castle of the "fairy-tale king."

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.