This was taken outside one of the many mosques in the Fez medina. Morocco is one of the few countries in the world where non-Muslims are not allowed to enter into a working mosque. Fez is one of the best-preserved Old Cities in the Arab world. The sprawling medina is also the world’s largest car-free urban zone. The massive medina, with its high walls and winding streets, cannot be navigated without a guide or you will surely get lost.