This dramatic footage shows the death-defying moment a fearless thrill-seeker rode a unicycle along a tightrope 100ft from the ground. <br />Daring Guillaume Fontaine, 20, can be seen directing a tiny unicycle more than 200ft between cliff faces over a rocky chasm. <br /><br />The French Canadian adrenaline-junkie plans to claim a new world record after completing the scary stunt at Table Mountain in New Hampshire, United States.<br /><br />Subscribe to our channel to be the first to see our viral, breaking news videos. Twitter.com/swns Instagram.com/swns
