About Si He Yuan: Si He Yuan (quadrangle courtyard) is a kind of classical architecture of residential housing for Beijing citizens dated from the Ming Dynasty. The narrow streets between Si He Yuan are called "Hutong". A traditional Si He Yuan comprises of a central garden surrounded by rooms and protected by high walls. Si He Yuan with Hutong has a history of more than 700 years, but now is suffering from the gradual urbanization of the metropolitan Beijing. Many foreign friends regard Siheyuan as bungalow, actually it is not. It is a traditional graceful Chinese building. A standard Siheyuan usually consists of houses on its four sides and the house which stands at the north end and faces at the south is called the main house or north house. The ones on both sides are called side houses, and the one which stands at the south end and faces north is called opposite house or south house. Usually a whole family lives in one compound. The elder generation lives in the main house, the younger generation live in the side houses, and the south house is usually their sitting room or study.