Alley may be paved, or unpaved, and a blind alley is a cul-de-sac. Modern urban developments may also provide a service road to allow for waste collection, or rear access for fire engines and parking. Because of geography, steps (stairs) are the predominant form of alley in hilly cities and towns. This includes Quebec City in Canada and in the United States Pittsburgh (see Steps of Pittsburgh), Cincinnati (see Steps of Cincinnati), Minneapolis, Seattle, and San Francisco as well as Hong Kong, Genoa and Rome. Some alleys are roofed because they are within buildings, such as the traboules of Lyon, or
Blind artists and form. Blind or visually impaired artists work in a variety of different media, and are by no means limited to only one type of art. The website for the Blind Artist’s Society contains a page where blind artists can display their work, and some types of work include nature/ landscape painting, physical models, wood carvings, portraits, abstract paintings, watercolor paintings, and drawings. Many are able to create realistic artwork through the use of light/shadows and perspective in their work. Textile Needle Arts such as machine sewing, hand sewing, braided rugs, needle felting, knitting and crochet are other mediums a