Not dirty. The riverside scene on Qingming Festival has no special significance. This is a picture showing street customs. According to the relevant public information, the value lies in the cultural and historical value, which is helpful to the social research at that time. The Riverside Scene at Qingming Festival, one of the top ten famous paintings handed down in China, is a genre painting in the Northern Song Dynasty, and it is a national treasure cultural relic that Zhang Zeduan, a painter in the Northern Song Dynasty, has only seen. Now in Beijing.