The deepest metro station in the world.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

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

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

When the rain falls, this drain system turns into a musical instrument.

Most prolific publishing house in the 1600s open to the public.

Russia's own leaning tower was built on a tragic historical fable.

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

This ancient burial mound is accessed by an impressive Greek-built archway.

One of the windiest peaks in Crimea is home to an incredible set of cable bridges.

A castle perched precariously over the Crimean Sea.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

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

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

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

A slice of central Asia in the middle of Berlin.

A brush maker used his factory to protect blind Jews from the Gestapo.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The most visited, and possibly most controversial, museum in Germany.

Berlin's old airport.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

A fascinating insight into daily life in the Eastern Bloc.