adventure
arid landscape
asia
china
climbing
color image
desert
dunhuang
gansu province
gobi desert
hill
horizontal
incidental people
jiuquan
low angle view
mingsha shan
outdoors
panoramic
photography
remote
sand dune
scenics
silhouette
silk road
silk route
singing sand mountain
sky
tourism
tourist
tranquil scene
travel destinations
vacations
walking