A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

This 13th century Gothic brick castle is the largest in the world by surface area.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

A tribute to the first human in space.

A cluster of headless, armless sculptures looms within a popular Polish park.

An impressive monument to Poland's independence.

A little sculpture with a large wardrobe.

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

The "Prussian Versailles" that is as glorious today as when it was built.

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

This monumental work of art symbolizes the coming together of a previously divided city.

Berlin's old airport.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

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

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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

What was once an underground Nazi city is now Europe's largest bat reserve.

This towering statue of Jesus provided internet to the surrounding area.

The site of one of the largest prison escapes of World War II.

Community bookshelf of 25-foot-tall book spines.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.