A history of the famous Terracotta Army in Xi'an, China, exploring what we now know about it, what remains hidden, and the fascinating theories that surround its creation. Exciting investigations in northwest China are about to reveal more of the mysteries of the huge mausoleum of the Qin Emperor, a portion of which was accidently discovered in 1974 by farmers who were digging a well. The second phase of an international research project began...