Fes or Fez  is the third largest city in Morocco, after Casablanca and Rabat, with a population of 946,815 (2004 census). It is the capital of the Fès-Boulemane Region.Fes is one of the four so-called "imperial cities" (the others are Marrakech, Meknes and Rabat). It is separated into three parts, Fes el Bali (the old, walled city), Fes-Jdid (new Fes, home of the Mellah), and the Ville Nouvelle (the French-created, newest section of Fes). The Medina of Fes el Bali, the largest of the two medinas of Fes, is believed to be the largest contiguous carfree urban area in the world. Fes el Bali is classified as a UNESCO World Heritage Site.Fes is becoming an increasingly popular tourist destination and many non-Moroccans are now restoring traditional houses (riads and dars) as second homes in the Fes medina.