Introduction to the Star Gong Tower: The ancient city of Weishan has a city wall, four gates in the east, west, south and north. A star arch tower is built in the center of the city. The ancient city is as square as a seal. The city has a checkerboard street pattern. There are 25 streets and 18 lanes, and the streets are crisscrossed. The majestic Gongchen Tower and Xinggong Tower have become landmark buildings in the ancient city.