Well, just got back home and have to remind people about the Museum of Flight in Seattle. We talked about this many times back on TRF 1.0, but for those that haven't been there - if you're in Seattle, it's a must see!
And as far as the Rocketry exhibit, they've done an absolutely great job! Not only do they have some great examples, but they also have the Harry Stine and Homer Hickam exhibit. Including Homer's medal and his signed autograph picture from Dr. Von Braun.
Of course for me, the highlight is always the WWII exhibt. Anytime I can see a Corsair, a Mustang, a Lightning, a Warhawk, and an Oscar all in one room I'm like a kid in a candy store.