This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

This historic stone bridge has an entire neighborhood clinging to its sides.

This cheeky restaurant has a serious devotion to lard sculptures.

A beautiful art space and unusual mini-hotel hidden in the city center of Dnipro.

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

A Kyiv-based repository for all manners of discarded curiosities.

One of the world’s best microminiaturist, Nicolaï Siadristy displays his lifetime of tiny creations in this museum.

Remains of a station that only operated for one year.

This Ukraine alleyway has become its own little island of forgotten things.

An Art Nouveau building covered in animal gargoyles and grotesques.

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

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

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

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The largest catacomb system in the world.

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.

This fairytale medieval church in Poland originally spent centuries in Norway.

Dubbed "Wistom" by locals, this abandoned factory is an urban explorer's dream.

One of the world's largest collections of medieval religious art.

The two abandoned overpasses are among the largest bridges in Poland.

This imposing 20th-century castle was abandoned before it was ever completed.

A World War II torpedo launch station abandoned off the Polish coast.

A collection of old neon signs from all over Poland line a secluded courtyard.