Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

An abandoned brutalist monument whose history has been lost to the ages.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

A war-torn Olympic relic is being overtaken by graffiti and nature.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

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

These warring psychedelic crags commemorate an unsuccessful military operation.

Bridge that died in war and was resurected.

Yugoslavia's biggest underground airport lies in ruins.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

This abandoned Belgian fortress is purposefully being left to nature.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

Climb inside an iron crystal magnified 165 billion times its normal size.

This ghost town in Belgium will lose its street art when it ceases to exist.

Lavish royal estate punctuated with heated greenhouses.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A striking Soviet memorial commemorates the liberation of Belarus from the Nazis.