This old and disused water tower has received a new life as an art gallery with a piano staircase.

Historic slum of Tartu.

For the last century, this international border within a small town has appeared and disappeared various times.

The secret cells in the basement of the KGB's Estonian "Grey House" have been preserved as a grim Cold War museum.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

Spend your honeymoon where the Devil had his wedding.

"There's nothing there," and other lies the KGB told us.

The largest collection of death masks in Ukraine.

This underground transport hub doubles as an art gallery.

The spectacular Roshen Fountain show lights up the night sky all summer long, until it "hibernates" under the ice waiting for spring to come.

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.

This hill is known for its connection to the occult in Slavic tradition.

The deepest metro station in the world.

The ruins of an abandoned church loom within a picturesque Ukranian village.

This derelict superstructure was a very important warning system for the Soviet military.

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

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

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

Lonely minaret stump of a destroyed city.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

Time capsule of a museum, in which the Soviet Union remains alive and kicking.

A boulder carved into the shape of the cosmonaut's head.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.