If you’re both adventurous, then why haven’t you tried the Edge Walk at the CN Tower yet? Granted neither you nor Mom have a heart condition, this is also a great way to overcome a small fear of heights. Plus, the view of the whole city is unmatchable. Tickets include a complimentary turn about the SkyPod (the highest observation platform), so you can work up your courage from the glass floor to the window lookout before heading to the roof. Your whole experience is captured on video, with photo-stills available for purchase.