"The Summer Palace is mainly dominated by Longevity Hill (60 meters high) and the Kunming Lake. It covers an expanse of 2.9 square kilometers, three quarters of which is water. The central Kunming Lake covering 2.2 square kilometers was entirely man made and the excavated soil was used to build Longevity Hill. In the Summer Palace, one finds a variety of palaces, gardens, and other classical-style architectural structures."
"In December 1998, UNESCO included the Summer Palace on its World Heritage List. It declared the Summer Palace "a masterpiece of Chinese landscape garden design. The natural landscape of hills and open water is combined with artificial features such as pavilions, halls, palaces, temples and bridges to form a harmonious ensemble of outstanding aesthetic value." It is a popular tourist destination but also serves as a recreational park."