Fez is the medieval capital of Morocco, and a great city of high Islamic civilization. Fez has the best-preserved old city in the Arab world, the sprawling, labyrinthine medina of Fes el-Bali. Fes el Bali was listed by UNESCO as a world heritage site in 1981 under the name Medina of Fes. The world heritage site includes Fes el Bali's urban fabric and walls and a buffer zone around Fes el Bali.