Yuan Dadu City Wall

　　   Construction of the wall began in the fourth year of the Zhiyuan era (1267) during the reign of Kublai Khan, the founding emperor of the Yuan Dynasty, and was completed in the nineteenth year of the Zhizheng era (1359) under Emperor Shundi. To strengthen defenses, barbicans and drawbridges were built at the eleven city gates. After the establishment of the Ming Dynasty, the original Yuan Dynasty walls were reinforced with brick facing, and the northern section of the Yuan city was moved 1 kilometer south, where the Ming city wall was rebuilt. As a result, the northern and northern sections of the western walls of the Yuan Dynasty have been preserved.

　　   The wall was entirely constructed from rammed earth. To reinforce the structure, “Yongding pillars” (vertical columns) and “? pillars” (horizontal beams) were used within the rammed earth. The architectural form, construction methods, and meticulous, rigorous planning of the Yuan Dadu City Wall serve as important physical evidence for studying Yuan Dynasty architecture, urban engineering, and the history of Beijing’s development.

　　   In May 2006, the Yuan Dadu City Wall Ruins were designated as part of the sixth group of Major Historical and Cultural Sites Protected at the National Level by the State Council.