We've been to the Strong museum of play two times now, and the kids had fun both times. The first time we purchased a pass so that if we were passing through the area, or on a shopping trip we could stop in again. It was a full day event the first time, and the kids really enjoyed it, the second time, it was a great diversion and way to break up the first day of a long road trip. My younger two 4, 6 obviously enjoyed it more than my 15 and 17 year old did, but the older kids enjoyed the arcade, and the overall museum display, there was something to do for everyone. They have a food court, and a diner inside an old train streetcar/train car, also a carousel and train ride (1$ ticket) Butterfly area costs extra
They seemed to have some free strollers you could use while there as well.
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