The vast, legendary catacombs hold secrets much stranger than stacked bones.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

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

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

The last bastion of Roman presence north of the Alps looms over a German town.

A fearsome dragon clings to a corner of Munich's city hall.

A quaint Russian village in the middle of a German metropolis.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The prototype for all Nazi concentration camps.

This "floating railway" is one of the world's oldest monorail systems.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The fairy tale castle of the "fairy-tale king."

The Nazis lost more men trying to take this Russian-held Stalingrad apartment block than they did when taking Paris.

Stalin's secret bunker.

The world's tallest statue of a woman wields the world's tallest sword and is at risk of toppling over.

Replica of mosque destroyed by Russia in the 16th century.

Former prison camp dedicated to the victims of political repression.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Former headquarters of the KGB.

Palace where the nearly un-killable Rasputin was murdered.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Museum celebrating the achievements of the Soviet space program.