This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

This historic Victorian hotel has a scandalous history of affairs and murder.

An underground city of salt.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

A huge Soviet-era robotics factory in the outskirts of Pripyat, now long-abandoned.

Featured in one of the most iconic scenes in cinema history.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

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

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

The dining hall that nourishes workers in Chernobyl's Exclusion Zone is also open to visitors.

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

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.

An Art Nouveau building covered in animal gargoyles and grotesques.

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.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

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.