Doing a handstand on the edge of a tall building or completing pull-ups on a bar located hundreds of feet above the ground without any safety equipment doesn’t sound like the best use of time to me. For others, that’s where they thrive.

A video uploaded to YouTube features freerunning and parkour athletes carrying out these stunts without evidence of nervousness or hesitation. All of the footage shown in the compilation was originally from YouTube user AlexandeR RusinoV.

Check out the video below, unless you’re afraid of heights.