The Summer Palace or Yiheyuan (Garden of Nurtured Harmony) is a palace in Beijing, China. 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. In its compact 70,000 square meters of building space, one finds a variety of palaces, gardens, and other classical-style architectural structures.