四合院是從明代的北京延續下來的古典建筑風格的住宅。四合院之間的狹窄的街道被稱為胡同。一個四合院有園林包圍著四個房子，有高高的圍墻保護。四合院與胡同都是人們常見到的，有超過700多年的歷史，但是由于現在的城市改造和中國經濟的發展，四合院慢慢地從北京消失。

　　Si He Yuan is a classical architecture style of residential hous?ing of Beijing citizens dated from the Ming Dynasty. The narrow streets between the Si He Yuan are called Hutong，s. A single implementation of Si He Yuan comprises of garden surrounded by four houses and protected by high walls. Si He Yuan with Hutong which have been very familiar to people，having a history of more than 700 years now suffer from the ur?ban renovation and economic development of China, and they are slowly disappearing from Beijing.