5. The Langyatai site in Qingdao, Shandong province
Archaeological excavations have provided concrete evidence for the historical accounts of Emperor Qinshihuang's eastern tour and the construction of the Langyatai complex. Langyatai is the earliest and largest imperial engineering project of the Qin Dynasty (221-206 BC) discovered to date in eastern China, serving as a political landmark for the Qin and Han (206 BC-AD 220) dynasties to assert their rule.