Al-Muizz Street (Shariʕa al-Muizz li-Deen Illah) (30°02′ 48" N 31°15′ 36"E) in Islamic Cairo, Egypt is one of the oldest streets in Cairo, approximately one kilometer long. A United Nations study found it to have the greatest concentration of medieval architectural treasures in the Islamic world.[1] The street (shariʕa in Arabic) is named for Al-Muʢizz li-Deen Illah, the fourth caliph of the Fatimid dynasty. It stretches from Bab Al-Futuh in the north to Bab Zuweila in the south. Starting in 1997[2] [3], the national government carried out extensive renovations to the historical buildings, modern buildings, paving, and sewerage to turn the street into an "open air museum", with work scheduled to be completed in October 2008. On April 24, 2008, Al-Muizz Street was rededicated as a pedestrian only zone between 8:00 am and 11:00 pm; cargo traffic will be allowed outside of these hours.