Here’s a guy you don’t want to challenge to a game of Jenga. Michael Grab has a unique talent of stacking rocks onto each other. So unique in fact that this rock balancer can seemingly defy gravity.

They are called cairns, and mountain climbers and hikers use them to mark the trail or to signal they had passed through. You might not think creating them sounds like such an amazing feat. If so you haven’t seen some of this man’s spectacular work.

In this recently released video above, Grab showcases his talent in extraordinary settings from mountain rivers, the desert and the ocean. His exploits caught the attention of USA Today last year which featured the professional rock balancer and produced a video from a creek in Colorado. Onlookers commonly asked whether he was using any glue.