ancient
architecture
asia
blue sky
china
city gate
cultural relics and historic sites
daytime
dunhuang
famous attractions
famous local attractions
geography
geological
historic buildings
history
holiday
horizontal composition
in east asia
in gansu province
in han dynasty
jade gate
landforms
landmarks
natural scenery
physical geography
protection
sights
site
summer
sunny day
tourist resorts
travel
travel destinations
visitors
war
weathered
white clouds