The exhibition hall is not big, do not explain, read the text introduction, or voice tour, adults can see it in 1 hour. The exhibition hall provides free explanations in time, suitable for parents with children. I have been there once in five years, and the adult ticket was about 50 yuan at that time. At present, only one or two new exhibits have been added (the deep impression is that the pig is strong), and the tickets have risen so much, and some are really too expensive.