Most have heard they like to make rock stacks...but there are humans who take this art form to a very different level.
This morning's Herald Sun had an amazing picture of a large arch bridge rock stack at the European Championships. There were over 30 competitors from around the world on a beach at Dunbar, near Edinburgh.
One of the best stackers on the planet is a man named Michael Grab. Seems he just grabs those rocks and defies gravity with them.
For some light entertainment and highly creative photography, check out this short video here.