Scan the QR code and brush the ID card for free to visit, especially to praise this obligatory commentator little sister, a full hour of explanation, meticulous and serious, not only about historical knowledge, but also involved a lot of historical stories, children like to listen, and finally ask to know, The narrator turned out to be a second-year student. I really admire it. I have a rich history and can answer questions from the visitors at any time. The children are really amazing now.