The Summer Palace, or Yiheyuan, is a stunning representation of Chinese garden design and a pinnacle of the harmonious integration of natural and man-made landscapes. This World Heritage site in Beijing encompasses an area of 2.9 square kilometers, with the vast Kunming Lake, magnificent Longevity Hill, and numerous palaces, gardens, and pavilions. It was once an imperial garden during the Qing dynasty and served as a summer retreat for the royal family, offering a tranquil escape from the city's heat.