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
The Blind Leading the Blind Bruegel's mastery of foreshortening. Bruegel's settings tend to be fictional, but that of "The Blind Leading the Blind" has been identified as the village Sint-Anna-Pede, and the church as Sint-Anna Church. One of four surviving Bruegel paintings in distemper, the work is a tüchlein, a type of light painting that uses tempera made from pigment mixed with water-soluble glue. This medium was widely used in painting and manuscript illumination before the advent of oil paint. It is not known from whom Bruegel learnt its use, but amongst those speculated are his mother-in-law, illuminator Mayken Verhulst; his teacher Pieter Coecke van