western xia imperial tombs

ancient autonomous barrier brick buddhist burial china chinese civilization complex cultural dangxiang desert dynasty emperor empire ethnic excavated excavation fort funerary genghis gobi grass helan heritage historic hui imperial inscription khan mausoleum mongols mountain ningxia nomadic ornamentation preserved region relics remain road royal ruins silk site spacious statue stele stone tangut taoism tomb unearth vanish vanished western wild xia yinchuan