As you know, the Koran forbids depict living creatures. Therefore, Muslim artists used exclusively ornaments with geometric and floral motifs. Vines and grape leaves can be seen on the dome, and on the wall frieze. Three-, six-, octagons and elegant ligature Kufic font cover carved wooden ceilings, and portals, or applied to knock (artificial marble), who finished the walls and domes. Black and white, geometrically rigorous marble framing windows and doors contrast with the diversity of the walls. The appearance of the oldest mosques, mostly built with Aghlabid, is simple, and, on the contrary, in the period of Turkish rule of construction are characterized using a mixture of styles and bright colors.
Usually consist of a mosque prayer hall (haram) and courtyard (san), under which there are cisterns to collect rainwater. Often there is also a body of water and for ritual ablutions. In the prayer hall in the direction of Mecca, which is facing the person praying, decorated tiles indicates a prayer niche (mihrab). Nearby is the pulpit (minbar), with which the imam, mosque rector, delivers his sermons on Fridays.
Many Tunisian cities have walled medina, which is still preserved and maintained the traditional device of ancient Arab city. In Medina, around a large, designed for total Friday prayer mosque located madrassas - religious schools, as well as females - shopping street, that house shops and workshops. Traders located near a mosque books and perfume, then - tailors and fabric sellers, saddlers, weavers and on the edge, finally, blacksmiths and tanners. Then there are living quarters, again the mosque and public baths (hammam). Many Tunisian Medina surrounded by walls and the traditional architecture of the Arab city remains in them until now.