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 song written by Mick Jagger, performed by Mick Jagger and Dave Stewart for the soundtrack of the 2004 film "Alfie". In a notable episode of "Sex and the City" Samantha tells Carrie that giving her advice is like 'the blind leading the blind'. The song "Ego Tripp" by Mushroomhead includes the lyrics, "as the blind lead the blind on a crusade for sight." The blind leading the blind "The blind leading the blind" is an idiom and a metaphor in the form of a parallel phrase, it is used to describe a situation where a person who knows nothing is