This vast masterpiece of Moroccan architecture spreads across 20 acres.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

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

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

An abandoned horror film set sits eerily along a highway through Hollywood's "door to the desert."

The other side is actually green.

Mosaics, storks, and brothels—this ancient city has it all.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

One of the most spectacular canyons in the world.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

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

The remains of a magnificent medieval fortress that was the capital of a vast empire.

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

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Morocco's Argania trees are infested with nut-hungry goats.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.