Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

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

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

One of the most iconic neon ads of former East Germany.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

An old slaughterhouse now holds the largest collection of pig artifacts.

This old wooden funicular railway leads to a cemetery in the forest.

This baroque palace displays an impressive collection of taxidermy, art, and rare objects from the days of courtly hunting.

The zoological collection at the Hessisches Landesmuseum hosts some of the world's oldest habitat dioramas.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

Crop circles inspired this whimsical garden in Germany.

A German apartment building hosting as many trees as human occupants.

A small hippo-shaped fountain in Berlin, Germany.

A statue of an astronomer gazes at the sky as a tribute to Caroline Herschel.

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

Berlin's old airport.

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.

The most visited, and possibly most controversial, museum in Germany.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.