Public aviation museum at San Carlos Airport founded by helicopter pioneer Stanley Hiller Jr. and a Smithsonian Affiliate, with more than 50 aircraft spanning a century of aviation plus interactive galleries, flight simulators, an Invention Lab, Drone Plex and aviation education programs. Public hours vary across the operator’s visit pages and seasons: daily access is generally listed around 10:00–17:00, with some schedules opening at 09:00 and extending Fridays; check the official calendar or call before visiting. Admission is ticketed, with operator discounts, free categories and group options subject to current terms. Free parking, wheelchair access and service-animal access are available; holiday closures apply. Address: 601 Skyway Road, San Carlos, California 94070, United States.