Though it has no physical obstacles,  “The Self Transcendence 3100 mile race” is and obstacle course among one of the most challenging in the world, and easily lives up to its apt name. Located in Queens New York, participants fight a tormenting “Man vs. Man battle” and are required to complete 5649 laps around the city block within 52 days. Walk in a loser, walk out a (possibly hospitalized) legend.