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

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

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

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

A deadly ancient portal to the underworld.

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

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

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.

A marvel of Byzantine engineering under the streets of Istanbul.

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.

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

One of the oldest and largest castles in the world.

Amid the rubble of Aleppo's Old Quarter, part of a historic market has been restored and re-opened.

This ancient mountain monastery welcomes all manner of faith in an effort to keep Christians in Syria.

What is left of the pillar of Saint Simeon, the voluntary martyr who climbed the column to give his sermons, remaining perched there for thirty-seven years.

The Syrian headquarters of alleged hashish-smoking assassins.

A 1,500-year-old ghost settlement is slowly fading away.

Ruins of the Crusaders' headquarters.

Mysterious lost empire of the Silk Road.

The rocks around this mountain are filled with so many carvings that the area became known as the "open library."

A phenomenon that appears to make gravity work in reverse has been attributed to jinn, supernatural spirits from Arabian folklore.

Abandoned station along an ancient pilgrimage route.