http://www.historyflight.com/

Obviously we like our Mustang cars, but if anyone is inerested in the P-51 Mustang airplane, they are going to have one at the Allegheny County Airport this weekend. You can even take it for a spin if you have a few extra thousand dollars laying around. Otherwise, it is free to get in and look at the planes, but last time they asked for a small donation ($5) to walk inside the bomber.