All great museums so far... Many that I really want to go to at some point. Do you know I've never been to the RAF Museum at Cosford. Shame on me.
I'd also add Planes of Fame and Yanks at Chino, and the EAA Museum at Oshkosh and also the Airspace Museum at San Diego all of which have some unusual aircraft. And Kermit Weeks' place at Polk City, FL.