Agree all those above, also Old Rhinebeck in NY State, which is a bit like Shuttleworth on speed...! A few other interesting museums I've been to in the US are Planes of Fame and the Yankee Air Force Museum at Chino (YAF is moving though - or perhaps has), The Hiller Museum at San Francisco (at a small airport a few miles south of SFO), a helicopter museum at Brandywine in PA, and of course the EAA Museum at OSH.