Introduction to standing stones in the Qin Dynasty: The First Emperor of Qin visited Chengshantou in the East and ordered Prime Minister Li Si to write: "The end of the sky is at the east gate of Qin" and set up a stele on the top of Chengshantou. Due to the age, the stele was broken into two parts, with words on the upper half. Part of it fell into the sea. The base of the existing mountain top is 120 cm high, 145 cm wide and 75 cm thick.