If you're scared of heights, this video will probably give you the heebie-jeebies. That's because Russian YouTuber and freerunner OlegCricket (or Oleg Sherstyachenko) performs some pretty scary looking stunts while atop a building in Toronto.

The video's part of a promotional campaign for the Swiss watch company Bomberg and the whole thing happens in front of Metro Hall.

Along with rooftopping in Toronto, OlegCricket climbs to the top of buildings in cities around the world and posts photos of his feats on Instagram as well as on YouTube.

Sherstyachenko first gained prominence through a series of photos in which he was captured dangling from tall buildings holding on only to the hand of his friend Ilya Bagaev.

A photo posted by THE ONE (@olegcricket) on Jul 16, 2016 at 6:20am PDT

His stunts have diversified since then, though they continue to push the envelope when it comes to death-defying antics. His Toronto video isn't quite as epic as some of the others production-wise, but the stunts are just as stomach-turning.

A photo posted by THE ONE (@olegcricket) on Jun 1, 2016 at 3:21am PDT