The Old Summer Palace, also known as Yuanmingyuan (traditional Chinese: 圓明園; simplified Chinese: 圆明园; pinyin: Yuánmíng Yuán; lit. 'Gardens of Perfect Brightness') or Yuanmingyuan Park, originally called the Imperial Gardens (traditional Chinese: 御園; simplified Chinese: 御园; pinyin: Yù Yuán), and sometimes called the Winter Palace, was a complex of palaces and gardens in present-day Haidian District, Beijing, China. It is 8 kilometres (5.0 mi) northwest of the walls of the former Imperial City section of Beijing. Widely perceived as the pinnacle work of Chinese imperial garden and palace design, the Old Summer Palace was known for its extensive collection of gardens, its building architecture and numerous art and historical treasures. Constructed throughout the 18th and early 19th centuries,