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

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

This airport also offers travelers the chance to view thousands of years of Turkish history.

Brawny guys rolling around in oil is the oldest regular sporting event besides the Olympics.

This beautiful train graveyard is one of the largest collections of steam locomotives in the Mediterranean and Europe.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

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

This hidden gem is bathed in beautiful natural light.

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

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

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

A Turkish monastery tucked into a cliff wall.

The best-preserved ancient theater in the world.

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

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

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

Ottoman-era houses lovingly preserved.

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

The ornate miniature mansions were built for Istanbul's feathered residents.

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

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

A deadly ancient portal to the underworld.

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.