The Langyatai ruins, located in Huangdao district, Qingdao, Shandong province, are surrounded by ocean on three sides and stand as the earliest and largest state-level project ever discovered in eastern China from the Qin Dynasty (221-206 BC).
Recent archaeological excavations revealed a grand high platform structure — filling a gap in the archaeology of Qin and Han (206 BC-AD 220) architecture outside the Guanzhong region (Guanzhong refers to an area surrounding the Weihe Plain in today's Shaanxi province, where Qin and Han established their capital and core ruling area).
Researchers unearthed standardized building components like tiles, tile ends and bricks, offering valuable clues for dating and studying architecture and relevant sites from the two dynasties across Shandong and beyond.