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.

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

An impressive monument to Poland's independence.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

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

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

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

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

Cold war icon and onetime "hole" in the iron curtain.

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

Metro station with a claim to rock n' roll fame.

Berlin's old airport.

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

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

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

Warsaw's fantastically preserved gasworks...almost.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.