The Summer Palace is a palace in Northwest 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. 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.