Just returned from the Dayton, Ohio area. When we arrived at the airport we had time to spare so we thought we would drive an hour north to Wapakoneta to see Armstrong Air & Space Museum. Well worth the trip if you're in the area. Doesn't take a lot of time to go through it. I would allow about 1 1/2 - 2 hours. Not a whole lot for young children to do at this museum and the price might deter families but a good museum for those that enjoy space and the history of space.