Shanghai's alley is Shi who is composed of over a hundred units Ku a gate row of union body stands closely, forms huge house community. Shi Kumen constructs the gap, has formed a narrow gloomy channel, this kind of channel is the Shanghainese so-called “the alley”. Beijing alley is due south due north, the due east west, looks like northerner's disposition. Alley wide little narrow many, short young and the old's many, cuts out that optional nature in the city, scatters especially facilitates agily. Person from Beijing Chang Ai said that the famous alley 3600, do not have a alley to be innumerable. Beijing's alley, materially is many, every large or small, one tightens between the central courtyard channel which arranges by place. In order to be advantageous for the natural lighting, is fastidious the central courtyard is facing south, its arrangement result, the alley becomes the thing trend most. For ease of the communication, the alley which many north and south moves toward between the big alley. The entire place Beijing, is similar to the enlargement the central courtyard, the East, West, South and North basic symmetrical, the layout is rigorous, the imposing manner is magnificent, the surroundings add the tall wall to encircle by the rectangular circle, uniform.
Beijing's alley is not only the urban vein, the transportation forked road, it is the place which the Beijing ordinary people live, the important stage which the national capital history culture development evolves, it has taken down the historical vicissitude, the time style, and is containing the rich cultural breath, probably a folk culture's museum, ironed the people each kind of social life mark.
