Xian, China
In 1974, farmers digging a well outside the city of Xian unearthed a clay head, sparking an archeological excavation that continues to this day. The Mausoleum of the First Qin Emperor, more commonly known as the Terracotta Army, contains more than 7,000 clay-crafted statues, each one different and each weighing 300 to 400 pounds. So far, some 600 individual archeological sites have been uncovered in an area spanning 35 square miles.
Photo courtesy of nok6716/iStock