Founded in 1858, this is one of North America’s largest distilleries, producing 45 million litres (nearly 12 million gallons) of alcohol annually. Forty-five-minute tours require climbing six sets of stairs (with virtual tours available for those who can’t). Visitors must be 19-plus and wear sturdy, closed-toed shoes. Whisky tasting for a nominal fee, per Liquor Licence Board of Ontario regulations.