yún gāng shí kū
Yungang Caves at Datong 大同, Shanxi 山西
云
yún
abbr. for Yunnan Province 雲南省|云南省[Yun2 nan2 Sheng3]
冈
gāng
ridge
石
shí
abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1], the capital of Hebei
窟
kū
cave
