The Mogao grottoes in China, situated near the oasis town of Dunhuang on the fabled Silk Road, constitute one of the world's most significant sites of Buddhist art. In some five hundred caves carved into rock cliffs at the edge of the Gobi desert are preserved one thousand years of exquisite murals and sculpture. Mogao, founded by Buddhist monks as an isolated monastery in the late fourth century, evolved into an artistic and spiritual center whose...