To visit Yangzhou's famous Dongguan Street, you must pass through the East Gate site first. The East Gate site was built in the Tang Dynasty, and the ancient dynasties have built city walls in Yangzhou forts to consolidate border defense. Today, the foundations of these walls are only broken walls, under the cover of tempered glass, tourists rush by and occasionally observe. History can be drowned in dust, and will not forget the dust after all. Today, the rebuilt East Gate site is like a lush garden and a square where tourists gather. The city walls stand tall, the traces are mottled, and the red banners on both sides feel the hospitality of Yangzhou. The famous traveler Marco Polo also entered Yangzhou from the East Gate Wall, opening a magical relationship with Yangzhou for three years, so there are also Marco Polo memorial statues in the square. In addition, there are also impressive statues of revolutionary historical figures and ancient artillery cannons. Yangzhou has also experienced war and chaos in the long history. Remember the martyrs and cherish peace. The ruins of the East Gate have a thousand vicissitudes. I wish the world will be stable and there will be no war.