For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A historic fire call point.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

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

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

During World War II, Austria's oldest salt mine was used to store thousands of pieces of stolen artwork.

More than a millennium's worth of municipal records preserve the political history of Austria.

A magnificent collection of imperial armor and weaponry.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

A unique showroom for bathroom fixtures featuring a giant toilet observation deck.

A remarkable two-country morph, this town is part of Germany legally but is by all other measures Swiss.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

Standing stones found on a construction site are re-erected.

This church sits upon a peaceful hill and a long, turbulent history.

For over 300 years this little carving has been the city’s good luck charm.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.