The museum started as an eclectic private collection of aircraft prototypes and test vehicles, assembled by helicopter designer Stanley Hiller Jr., that eventually opened to the public in 1998. The roster of more than 50 aircraft includes: the Boeing Condor, a secret unmanned spy plane used in the 1980s that is bigger than a B-52 bomber; and the Hiller XROE-1 “Rotorcycle,” a full-size helicopter built in 1956 that collapses down into a portable pod. Also included are exhibits on the Beginnings of Flight and the nose section of a Boeing 747-100, including the First Class cabin and the cockpit. hiller.org<