The town is split in two by a wadi. On one side, there is the old sector, and on the other the new one. The indigenous Saharan architecture of older sectors of the city features houses constructed of reddish dry-stone and mud-brick techniques, with flat roofs timbered from palms. Many of the older houses feature hand-hewn doors cut from massive ancient acacia trees, which have long disappeared from the surrounding area. Many homes include courtyards or patios that crowd along narrow streets leading to the central mosque.