The Yangshan Quarry Stele
How did Ming quarrymen imagine moving and erecting three stone pieces weighing thousands of tonnes each, and what finally convinced them, mid-project, that it could not be done?
1405–1413 CE (Yongle Emperor, Ming dynasty) · Yangshan Quarry, Tangshan, Jiangning District, Nanjing, Jiangsu, ChinaAdded July 2026