Fes

Fes el-Bali, one of the world's largest car-free urban zones, is a labyrinth of over 9,000 alleyways where tanneries, madrasas, and artisan workshops have operated in near-unbroken tradition since the 9th century.

Fes rewards travelers with a guide who can navigate its intricacy — leading you past intricately carved cedar doors, working leather tanneries, and the University of Al Quaraouiyine, among the oldest in the world.