Eskil Ronningsbakken balancing on a chair above the famous Kjaerag Bolten rock, which isabout 800 meters high, in Norway.There can't be many professional balancing artisits in the world but Eskil Ronningsbakken has to be the world's most extreme. Eskil has been honing his balancing skills from  childhood and now attained such a high standard that he considers himself an artist. [Barcroftmedia/CFP]