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.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

This abandoned airplane hanger is said to have once been a top secret launch facility.

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

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

A forgotten and crumbling Yugoslav monument to the victims of fascism.

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

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.

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

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

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.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

An undulating wicker beast looms peacefully atop a sand dune in Belgium.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

This modern arts center is built around a gem of late-Baroque architecture.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.