Here are some further examples of Mashrabiya or Shanasheel "Arabic: مشربية or شناشيل term given to a type of projecting oriel window enclosed with carved wood latticework located on the second storey of a building or higher, often lined with stained glass. The mashrabiya (sometimes shanshool or rushan) is an element of traditional Arabic architecture used since the middle ages up to the mid twentieth century. It is mostly used on the street side of the building; however, it may also be used internally on the sahn, (inner courtyard) side."
In these photographs below, it is also possible to see cylindrical glazed brick tiles in use decorating the ledge above the window. You will note that the houses in Tunisia have flat roofs therefore these tiles have a purely decorative/ornamental purpose and are not used in the same manner as ordinary roof tiles.