large sand dune through a door in the desert at dunhuang in china

arid climate camel camels caravan central asia china crescent desert dry dunes dunhuang gansu province gobi lake oasis orange sand dune silk road yellow view large door wooden climate camel central asia crescent dry dunhuang gansu province gobi desert lake sand sand dune silk road yellow desert area travel riding animal tourist nature landscape scenery sky cultures beauty nature remote location non-urban scene camel train history temple building chinese culture famous place people buddhism travel destinations architecture desert oasis religion scenics nature crescent dunhuang ancient tower pagoda mountain hill door doorway