A recent photo shows a section of the Great Wall that s partly submerged in Panjiakou reservoir in Kuancheng Manchu autonomous county of Chengde, Hebei province.A recent photo shows a section of the Great Wall that s partly submerged in Panjiakou reservoir in Kuancheng Manchu autonomous county of Chengde, Hebei province. [Photo by Chen Xiangxu/For chinadaily.com.cn]