The Mountain Resort of Jehol, or Chengde. The wall encompasses a park of 139,000 acres. The entire complex was built between the years 1703 and 1792 by the emperors Kangxi and then Qianlong as a place to retire to in the summer and escape the heat of Beijing. Zanabazar, the first Bogd Gegen of Mongolia, visited here with Kangxi in the 1690s, when apparently there was only a few small hunting lodges and temples.
