Macabre astrological automaton clock dating to the late 1400s.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

Some of the world's only freshwater seals live in one very special lake in Russia.

Former headquarters of the KGB.

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.

Moscow's imposing monument to the Space Age.

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

This attraction was abandoned after the Chernobyl disaster.

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

In the land of the Light Brigade stands a testament to the Cold War.

The largest catacomb system in the world.