The naming was announced at a symposium held on Monday to commemorate Fan's 60 years of dedicated efforts to the cultural relics protection in Dunhuang.
" Dunhuang has put me where I am, and without Dunhuang, I would not be here today, " said Fan, who is currently serving as honorary president of Dunhuang Academy.
" We were deeply impressed by the gorgeous color and images of the Dunhuang murals, as well as the exhibited artworks of different dynasties in China's museums."
The other three are the Mogao Grottoes in Dunhuang, Gansu; the Yungang Grottoes in Datong, Shanxi province; and the Longmen Grottoes in Luoyang, Henan province.