This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

A charming beach town in Turkey captures all the colors of the rainbow.

The best-preserved ancient theater in the world.

The ancient abodes are a testament to human ingenuity amid harsh climates.

A sacred lake with thousands of sacred carp and a biblical history.

The most metal church of all time was built in record time because of an international, pious pissing contest.

Mausoleum and Holy Seat of Antiochus I of Commagene.

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

A Turkish monastery tucked into a cliff wall.

Flames have been burning within this mountain for more than 2,500 years.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

Turkish adventurer antiques in the heart of the Grand Bazaar.

Ottoman-era houses lovingly preserved.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

An abused and forgotten metropolis, abandoned for centuries.

A deadly ancient portal to the underworld.

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

This hunter-gatherer architecture is believed to be the oldest religious complex known.

Like something out of a bad acid trip, this Ukraine hallway has been covered in hallucinatory phantasmagoria.

This underground transport hub doubles as an art gallery.