This former Nazi labor camp is now a poignant memorial, complete with giant Soviet-style monuments.

This micro-nation may be some sort of prank, but its constitution sure seems official.

An abandoned masterpiece of Soviet Brutalist architecture.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A narrow strip of land is home to the tallest migrating dunes in Europe.

This Communist-era residential block is one of the longest residential building in Europe.

Remnants of the city's Soviet history hover over this modern fast-food outlet.

Glowing orb in Minsk houses 8,600,000 items.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

A Czech shoe magnate built his office inside a giant elevator.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Museum dedicated to the terror regimes of Hungary.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Budapest's Communist-era statues, banished to the suburbs.

This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

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

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

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

Last remaining nuclear missile base in Ukraine.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.