Introduction to the screen wall: The screen wall on the south bank of the Qinhuai River is 110 meters long and 10 meters high. It was built during the Wanli period of the Ming Dynasty and is the largest screen wall in the country. In ancient times, screen walls not only played the role of decoration and shelter, but also fulfilled the Feng Shui requirement of "a photo in front and a back in the back", making them beautiful and practical.