An underground network of massive stone arches and their skylit vaults support ruins of portico structures above.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

One of the most exquisite Lycian hilltop citadels in Turkey.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

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

Mediterranean castle on a tiny Turkish island.

At this ancient settlement at the foot of Mount Babadağ, honeycomb tombs are carved into a round cliff.

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

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

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

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

Ancient serpentine sacrifice holder that has stood the test of time.

Mausoleum and Holy Seat of Antiochus I of Commagene.

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

A Turkish monastery tucked into a cliff wall.

Roman ruins, natural methane fires and a lovely beach.

The best-preserved ancient theater in the world.

Ottoman-era houses lovingly preserved.

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

Naturally protected city carved from a rock face.

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

An abused and forgotten metropolis, abandoned for centuries.

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

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