The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

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

The other side is actually green.

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

The ruins of an early-18th-century complex that could once house up to 12,000 horses.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.