Commuters driving past the CN Tower were treated to a surprise show yesterday morning as someone BASE jumped off the CN Tower as part of a promotional video for the upcoming Pan Am Games. A flurry of activity was recorded on Twitter and Instagram as excited witnesses tried to capture the parachuted jump from the country's tallest structure.

The last sanctioned jump off of the CN Tower was all the way back in 1979, when stuntman extraordinaire Dar Robinson took the plunge in a bright red Adidas track suit attached to a cable. Yesterday's jumper seems to have a smooth go of it, catapulting off the observation deck before deploying his parachute and gliding across the skyline in a controlled arc that made the whole exercise look like the safest thing in the world.

Pan Am Games officials are staying tight-lipped about the video for which the jump was undertaken, but I'll give them points for arranging something a bit daring like this. The last promotional video was good, but the event could use a little added excitement as the opening ceremonies loom just over a month away.

Lead photo by a1please