The oldest university in the world isn’t Oxford or the Sorbonne—it’s the University of Al-Karaouine, and you’ll find it in Fes el Bali. This walled city, a UNESCO World Heritage Site, will transport you back to mediaeval times. Visit the ancient maze-like quarters of the Medina to Fes el-Bali and the four imposing Gates of Fes, with their distinctive Moroccan tile work. You can walk, or, if you're brave, take a taxi—the daredevil drivers will have you hanging on for dear life.