Closest I've ever been to one since chldhood: the Musess de l"air et Espace at Le Bourget. They used to have a KC-97 parked outside. Magnificent machine.
If you're ever in Colorado Springs, Colorado, you can have lunch or dinner sitting in an actual KC-97 at a place called "The Airplane Restaurant". It's near the C-Springs airport.
I had lunch there a couple months ago - it was pretty good and even the wife thought it was pretty cool to have lunch sitting in an old KC-97.