Introduction to the city gate tower: In addition to the city wall, there are also 3 city gate towers. The city gate towers are all brick and wood structures from the Ming and Qing Dynasties, and they are majestic. They are Guangchu Gate Tower, Chaotian Gate Tower and Baozhu Gate Tower. Facing these treasures of cultural heritage, one cannot help but admire the rich wisdom and great creation of the working people of the Han nationality in ancient China.