A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

The biblical sculpture honors those who lost their lives, homes and communities to the Chernobyl disaster.

The deepest metro station in the world.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

This derelict superstructure was a very important warning system for the Soviet military.

340-foot statue built to honour the Heroes of the Soviet Union.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A museum dedicated to a Cold War era sausage.

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

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

Reminders of the Battle of Berlin still scar the railway.

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

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

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

A monument to the man who almost killed Hitler.

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.

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

Berlin's old airport.

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