Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

A giant bisected onion dome remembers the Iraqis who died in the Iran-Iraq War.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

Large miniature theme park with 100-plus models.

A little-known caravanserai hidden among farmhouses in the Turkish countryside.

The only residents of this abandoned housing development full of identical castles are stray cats and dogs.

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

This shuttered power plant is now Turkey's first industrial archaeology museum.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This sublime architectural marvel is a rare example of an expressionist church.

The oldest ruins at this castle overlooking Georgia's Terek River Valley date back to the 10th century.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

Remnants of the Nazis' occupation of Denmark linger along the sand.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

Denmark’s never-ending bridge.

This dizzying span over the ancient Algerian city was once the highest suspension bridge in the world.

This village was once a thriving Soviet uranium mining center, but is now semi-abandoned and desolate.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

A stunning blue-green lake located in the Terskey Alatau mountain range.