The past, present, and future of Russia's signature alcohol is remembered in the world's only museum dedicated to the starchy spirit.

Gargantuan home of Russian science.

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

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Stalinist skyscraper built with help of cryotechnology.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Moscow's imposing monument to the Space Age.

Museum celebrating the achievements of the Soviet space program.

Berlin's old airport.

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

A fascinating insight into daily life in the Eastern Bloc.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A museum marks and documents the site of the Titanic's launch.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

It was once nicknamed "the most bombed hotel in Europe."

These barriers stand as stark reminders of Northern Ireland's troubled past.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.