This field of half-buried stone crosses was the burial place of a sect of heretical gnostics.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

Once the largest rope factory in Greece, this abandoned plant now stands like a ghost of industry past.

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

An abandoned resort in North Macedonia is a relic from the Communist Party of Yugoslavia.

Built as an anti-fascist tribute, this surreal Yugoslav memorial became an unwelcome symbol after the Croatian war for independence.

Gigantic water vessel, permanently grounded in Southern Albania.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Controversial site of what could be Europe's first pyramid.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

A pair of connected skyscrapers form this symbolic gateway.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Stone age urban planning.

A collection of art from Bulgaria's time as a communist state.

Eastern Bloc nostalgia, anybody?

A vast Communist-era exhibition space in the Bulgarian capital.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

What happens when you cross a mayor and a painter?

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

These warring psychedelic crags commemorate an unsuccessful military operation.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.