Nanjing must go to a scenic spot. Nanjing is a city with historical memory. The Nanjing Museum is the best way to understand Nanjing's history. It details the history of the Nanjing Massacre, and after reading it, the mood was surging for a long time and could not be calm. There are also cultural halls in Nanjing in various periods, which are very large and worth a day's observation.