Naturally protected city carved from a rock face.

Mediterranean castle on a tiny Turkish island.

This hidden gem is bathed in beautiful natural light.

Mausoleum and Holy Seat of Antiochus I of Commagene.

This elevator was built in 1907 to connect two neighborhoods separated by a steep, rocky cliff.

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

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

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

According to local legends, the shallow sandbar that allows visitors to walk across Orhaniye Bay has a tragic backstory.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

A dark, narrow tunnel that leads to a charming lake and waterfall.

One of the best-preserved medieval streets in Europe.

A Turkish ghost town abandoned in a population exchange with Greece.

One of the most exquisite Lycian hilltop citadels in Turkey.

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

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

Roman ruins top white travertine terraces formed by ancient hot springs.

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

Fantastic lake on the heart of a fault line.

This burial mound is said to be the final resting place of Russia's first Viking ruler, Oleg of Novogrod.

Ukrainian defense contractor's center for studying "pyramid energy."

Mysterious spherical rocks in the semi-desert of western Kazakhstan.

Former island in the Aral Sea used to be a top-secret Russian bio-weapons facility.

Rusting ships sit in a desert where a sea used to be.