The Field Museum is not the best of Chicago's museums, but it is still an interesting place to go once in a while, especially if you want to see the T-Rex. These days, I usually only go there when there's a special traveling exhibit in town. For example, there's going to be a King Tut exhibit from May 2006 to January 2007, and I will definitely be there for it.
Although this is certainly a family museum that everyone can enjoy, I would recommend taking very young children to the museum of science and industry instead, as they have more interactive displays to keep the young ones entertained.
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