Usually in traditional societies exterior walls have relatively little decoration, but there are several exceptions, especially in Mali, where many facades have high relief and terraces on their roofs. Other places, like the town of Walata in Mauritania, have white lime painted directly on mud-plastered stonewalls, and patterns are incised and painted into the plaster. The example on this page is a drawing of a wall built for a porch in Waoundé, Senegal. This porch spans 55 feet and was built by its owner. There are many holes and “cutouts” that pierce the wall, yet it remains standing. Again, for wonderful examples of adobe walls in western Africa, see Spectacular Vernacular.