The Summer Palace (Yiheyuan in Chinese) is the largest and most well-preserved royal park in China. It greatly influences Chinese horticulture and landscape with its famous natural views and cultural interests, which also has long been recognized as 'The Museum of Royal Gardens'. The construction started in 1750 as a luxurious royal garden for royal families to rest and entertain. It later became the main residence of the Qing Dynasty. Composed mainly of Longevity Hill and Kunming Lake, it occupies an area of 300 hectares. 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. The Summer Palace is said to be the best preserved imperial garden in the world, and the largest of its kind still in existence in China.