The guys from this video prove that there is nothing impossible in the world. In particular, they used old building as a sports ground for their snowboard stunts. They used everything including railing, walls, windows and even roof to perform their insane jumps right behind the road with average traffic. They are totally reckless in a good sense. That is exactly what people do when they are bored from routine trails and fun parks. But do not try to repeat after them without proper equipment.