The big waterwheel in the ancient city of Lijiang is both an iconic building of the ancient city and a destination target for the ancient city. When I walked into the ancient city, I first saw two waterwheels. Some people said that it was a child waterwheel, and some people said that it was a lover waterwheel. The big waterwheel with the years flow, constantly carry on endless rounds. Now it has become a place for net red punching.