didn't get to see it - i'm way too far west of the city.
Yes, Udvar-Hazy is a "must see" attraction in the area. They are replacing the Enterprise with the Discovery. They also have an SR-71, SST, and the first boeing passenger jet along with a couple of hundred other attractions. And if you really like Udvar-Hazy, take a road-trip to the U.S. Air Force Museum in Dayton, OH, it's about 4x the size of UH and features both a B1 and B2, along with several retired Air Force 1's (including the one that brought home Kennedy from Dallas).