The building was built in 1750, burned down in 1860 by the English and French troops and rebuilt in 1888 by the Empress Dowager Cixi. For administering government affairs, receive greetings, and receive foreign envoys.

Kunming Lake takes up about 75% of the park. This lake used to be a much smaller water source near Beijing. Before this water reservoir becomes a man-made lake. Most of the expansions took place during the time of the Qianlong Emperor, who used about 10000 laborers for this end. They used the extracted ground as a means to increasing the area around longevity hill.

The living quarters of Empress Dowager Cixi. This large complex enjoys a prime position, facing the Kunming Lake, and backing onto the Longevity Hill.