This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Ancient rock-hewn town that witnessed key events of Georgian history.

Final palace complex of the last of 29 Kokand rulers.

Light still pours into the ruins of this ancient Islamic observatory.

The Avenue of Mausolea is a series of grand palatial tombs.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Fortified homes of highland warriors that are still in use today.

Underground monastery and fortress.

God's Saharan sandbox of wrath.

Crumbling necropolis set high above Fez.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

A fortified city, home to a remaining population of five families

The other side is actually green.

One of the most spectacular canyons in the world.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

Founded as a refugee camp, now a popular tourist spot.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

Ancient artists in the middle of nowhere.

Tracks of ceratosaurus and Coelophysis rhodesiensis tracks can be found fossilized in the sandstone near Mt. Etjo.