Fez was the capital of modern Morocco until 1925. The city has two old medinas, the larger of which is Fes el Bali. It is listed as a UNESCO World Heritage Site and is believed to be one of the world's largest car-free urban areas. Al-Qarawiyyin, founded in AD 859, is the oldest continuously functioning madrasa in the world. The city has been called the "Mecca of the West" and the "Athens of Africa".