There is (obvious) confusion between the
Future of Flight exhibit at the Boeing factory tour in Everett and the
Museum of Flight at Boeing Field in south Seattle.
The FoF is basically the waiting area before the factory tour, whereas the MoF is one of the great aviation museums of North America (No. 2 in my book.)
They are completely separate entities. Any aviation buff visiting Seattle who misses the MoF is truly doing him/herself a disservice IMO.