26/03/2014 05:49 GMT | Updated 13/08/2014 08:59 BST

Insane Free-Runner GoPro Video Shows James Kingston Risking Death On Ukraine Bridge (VIDEO)

There are a lot of free-running GoPro camera videos out there but there this one ups the ante in the viewer queasiness stakes.

James Kingston, 23, from Southampton and Ukrainian 'Mustang Wanted' climbed 390 feet up Moscow Bridge in Kiev.

It's up to you to decide which isthe craziest part of the video. Is it the back somersault on a narrow bridgehead, or hanging hundreds of feet in the air with only your mate's arm between you and certain death?

Who can say. What we can say for sure is that no one will release a headcam video this insane until, oh, maybe two days from now?