The subway is very convenient. At Exit 3 of Zengjiayan, you can swipe your ID card to enter by making an appointment in the public account. The more important exhibition hall is the city light and the magnificent Three Gorges. A systematic introduction to the geological structure of the Three Gorges, and the city light has a detailed introduction to Chongqing from the Ming and Qing Dynasties to the liberation. I also have a lot of knowledge about Chongqing history.