I have always called Zhongshan Bridge the Great Iron Bridge because its characteristics are really obvious. I only knew that the Germans built it a long time ago. This time I saw the bridge museum by the Yellow River. I learned more about it and felt more and more that the previous people worked hard. There is a small animated short film, there is a shallow explanation for the construction of Zhongshan Bridge; there are some physical displays, the museum is not large, the information volume is not small.