Les lieux de mémoire are places or symbolic objects that people use to remember important people, events, and stories from their past. This could be a monument, a building, or an object. People use these things to remember the history and stories of their culture or community. For example, some countries may have a monument or a special day to remember a significant event from their past, like the end of a war. This is a way for people to connect with the history of their country and remember the stories of their ancestors.