Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

The best-preserved ancient theater in the world.

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

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

Live a night as a Byzantine King, with a minibar and private jacuzzi.

Turkish adventurer antiques in the heart of the Grand Bazaar.

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

Ottoman-era houses lovingly preserved.

This eatery re-creates dishes from the Ottoman Empire so you can dine like a sultan.

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

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

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.

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

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.

This famous city eluded concrete detection until the early 2000's.

A deadly ancient portal to the underworld.

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.