CN Tower

Think you’re not scared of heights? Try hanging out on the Glass Floor, with the ground over 300 metres beneath your feet. Even higher is the SkyPod, the world’s highest public observation deck. It’s 447 metres above the city.

The CN Tower is very familiar to the world record folks at Guinness: among the many titles linked to the tower is the record for most steps fallen down by a person (1,760), done in less than two hours by a stuntman (with padding) in 1984. You’ll need permission if you want to try to break that record.