liujiaxia dam near the bingling cave with great rock formations along the yellow river,

asia asian bingling blue bodhisattva buddha buddhism carving cave china chinese confucianism dam day formations gansu gods heritage historic hydroelectric lake landmark lanzhou legend liujiaxia monastery mountain museum myth national nature nobody old picturesque protection religion river road rock scenery silk site sky statue statuette stone structure sunny symbol taoism tourism travel unesco vold yellow