Holland Cotter, the New York Time’s art critic has been traveling in China as part of a series “Throwing Open the Doors” that explores how China's shifting self-image is reshaping its art and art institutions. His second piece on Dunhuang’s Mogaoku, also known as “peerless caves” is a thoughtful and evocative piece on the nature and history of the Buddhist grottoes. Cotter was lucky enough to be able to spend the night at the site......