Liu Changsheng's former residence is just outside the back door of Jiuguang Department Store. Turn right when you go out. It's opposite to Jingpin. This is also the exhibition hall of the struggle history of the underground organizations of the Communist Party of China in Shanghai. It is a large three-storey foreign house with a large balcony. No tickets, free visits, but on Monday off, I was empty the first time I went. The first floor was a cafe and a small shop. The second and third floors introduced the activities of the underground party through photographs and impression materials. It was not clear that there were volunteers wearing red scarves. I think the most interesting thing here is the snack bar. There are many antiques in it. There are many kinds of iron toys like winding toys. Hens lay eggs, frogs and soldiers. It's hard to buy them now.