A kingdom of imperial cities where red-walled medinas run maze on maze at the foot of the Atlas Mountains. Read the heart of Marrakech from Jemaa el-Fnaa through the souks to the palaces and the cobalt-blue Majorelle Garden, thread Fez, the largest living medieval city on earth, past the oldest university in the world and its ancient tanneries, and follow ocean-facing Rabat from the Kasbah of the Udayas to the unfinished Hassan Tower and the Roman ruins of the Chellah. Some of the most maze-like, guide-pressured old cities in the world, and all the better taken at your own pace, on your own schedule, lingering or moving on as you please.