Climb inside an iron crystal magnified 165 billion times its normal size.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

A rare example of World War I trenches from the British front.

A moving memorial to the fallen and missing from WWI trenches.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

Fantastic views and thousands of love locks.

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

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

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

Twisted buildings adorn the banks of the Rhine river.

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

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

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

No need to strap in for a "ride" on this walkable roller coaster.

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

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The prototype for all Nazi concentration camps.

Where once there was a train station bathroom, there is now this German burger joint.

A stairway to heaven, or to nowhere at all.

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