Wow. It is really nice to see the aircraft up close that I grew up with. Only fee is the $15 for parking. Do suggest getting there early to see as much as you can. Get IMAX tickets as you arrive - any show is worth while. We saw one on the Hubble telescope. Another suggestion is to pace tour to get lunch (McDonalds) before movie. It was way too crowded after movie - so we drove to place near by.