The museum is large. Four floors. We were there for Christmas. There were many Christmas trees. Each of them represented a different country. There is a submarine from the Second World War. We were on an excursion in it. Those who do not know English need to walk with a native speaker. The guide was humorous, but he told everything in detail and interestingly.We haven't visited all the places in the museum, but it's interesting enough. If you are in Chicago, be sure to visit this place.