A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

What happens when you cross a mayor and a painter?

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

This hidden gem is bathed in beautiful natural light.

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

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

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

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.

A deadly ancient portal to the underworld.

This church houses the tomb—but not the remains—of St. Nicholas, the likely progenitor to Santa Claus.

One of the most exquisite Lycian hilltop citadels in Turkey.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

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

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

Mausoleum and Holy Seat of Antiochus I of Commagene.

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.

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.

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