“We light it up we won’t come down, and the sun can’t stop us now, watchin’ it come true, its takin’ over you, oh, this is the greatest show…” Ok, so PT Barnum may not have been referencing the Ultra-Trail du Mont-Blanc in “the Greatest Showman”, but he might as well have been. Once a year at … More UTMB: The Greatest Show (for Trail Runners)