Airplanes are often curious about their ancestry but cannot assemble family trees due to a lack of thumbs and a fear of flying too close to paint-scratching branches. Witness history at a comfortable height with today's Groupon to the Canadian Air & Space Museum. Choose between the following options:

• For $13, you get regular museum admission for two adults or one family of two adults and two youths (up to a $27 value).
• For $29, you get a one-year family membership, valid for two adults and two youths younger than 18 (a $60 value).

Children aged 5 and younger normally get free admission.

The Canadian Air & Space Museum celebrates aviation history inside Canada's oldest surviving aircraft factory and on the grounds of Downsview Park, Canada’s first urban national park. Delve into a biography of Canadian flight from 1920s wood-fabric biplanes to the dawn of 1960s space-reaching technology and the hamster-wheel-powered airships of today. Membership grants families free admission to all exhibits as well as members-night invites, gift-shop discounts, a quarterly newsletter, admission to lectures by guest speakers, and use of the reference library. The museum encompasses hangars full of artifacts and full-sized aircraft, including a reconstruction of the 1958 Avro Arrow supersonic interceptor with period sweater vest and horn-rimmed glasses. As the former home of de Havilland Aircraft of Canada, the museum also welcomes guests to peruse an expansive array of archival photos, company artifacts, and historic aircraft in their natural habitat. Visit functioning factory workshops, during which museum volunteers work to restore Victory Aircraft's 1944 Lancaster bomber and flaunt original Canadian Aeroplanes shop equipment used from 1917 to 1918. Guests can also acquaint themselves with collections of sport and training planes, Toronto-made jet engines, rare 1940s and 1950s flight-training simulators, and petrified pilot's chewing gum.

Photographic exhibits immortalize the Downsview-based RCAF Toronto squadron's team-building exercises and marathon macramé sessions, and eyeballs roam facilities that played home to the spacecraft company SPAR and the birthplace of the satellite Alouette I. Members' dollars go to support the museum's aircraft acquisition and maintenance and shop-equipment upkeep.