The more detailed the history of the West Building of Yuanmingyuan, the better.

In order to pursue all kinds of fun, the Qing emperor also introduced a European-style garden building in the northern boundary of Changchun Garden, commonly known as "West Building", which consists of more than ten buildings and gardens, including Heqi, Hangqiao, Flower Array, Bird Cage, Fang Mao, Haiyan Hall, Yuan Yingguan, Dashuifa, Waterscape, Hangshan and Hangqiang. The planning began in the 12th year of Qianlong (1747) and was basically completed in the 24th year (1759). It was designed by western missionaries Lang Shining, Michelle benoit and Wang Zhicheng and built by craftsmen in China. The architectural form is Baroque style in the late Renaissance of Europe, and the garden form is Rainotte style. However, it also absorbed many traditional techniques of gardening and architectural decoration from China.

The main body of the West Building is actually an artificial fountain called "Water Method". It is characterized by a large number, great momentum and strange ideas. It mainly forms three large fountain groups, namely, Harmony and Curiosity, Haiyan Hall and Dashuifa, which are quite interesting.