The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

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

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

Twisted buildings adorn the banks of the Rhine river.

Enter the cabin of a life-sized Hindenburg replica.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

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.

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

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

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 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.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

One of the most controversial statues in Romania is an emperor with no clothes.

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.