The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

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.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

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

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

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

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

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

One of the newest mosques in a city filled with thousands.

Step back in time and witness the fall of Constantinople.

One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

A fountain standing as a testament to a doomed alliance.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

Turkish adventurer antiques in the heart of the Grand Bazaar.

A tiny park in the middle of some big power politics.

Ancient serpentine sacrifice holder that has stood the test of time.