An abused and forgotten metropolis, abandoned for centuries.

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

A sculpture of a flying hawk made from colorful car doors.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

Apparently, the whole cosmos emanates from this plain concrete tower.

This unique rock formation has become a popular walking trail.

The tallest mountain in mainland Australia.

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

A meow-velous tribute to a beloved street cat, made famous on the internet.

Unfinished monument to peace between Turkey and Armenia, long divided by a dispute over genocide.

One of the most exquisite Lycian hilltop citadels in Turkey.

Remnants of successive wars and Muslim colonialism in the 11th century.

Natural rock formation, or biblical artifact that saved Earth's wildlife two by two?

These ruins once flourished as the capital of the Lydian kingdom, often credited with the invention of metal coinage.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

This ancient city - home to nine civilizations - is soon to be buried under 200 feet of water.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

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

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

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

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

Roman ruins, natural methane fires and a lovely beach.

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

Naturally protected city carved from a rock face.