Do ancient Chinese cities have walls? In people's previous impressions, ancient cities seemed to have city walls, especially capital cities. The towering city walls showed the supremacy of imperial power, and the fall of the city walls often meant the end of the empire. Beijing City in the Ming and Qing Dynasties, Dadu, Northern Song Dynasty The city, the Chang'an city in the Sui and Tang dynasties, and the Luoyang city in the eastern capital . The layout of the inner squares and the tall city on the outskirts of these cities constitute the most vivid physical and chemical representation of the imperial capital. The most likely next paragraph of this text is:. ['Evolution of the Imperial Capital.', 'The role of the walls of the ancient capitals.', 'The relationship between imperial power and urban structure.', 'Ancient Chinese cities without walls.']