660 metres above the Earth’s surface. This is how high two men, without safety equipment, climbed to the top of the Shenzhen Centre in China. The building is currently under construction but will be the second tallest building in the world upon completion. Scaling the building however wasn’t enough for the daredevils who continued to climb the cranes being used to construct the tower. The On The Roofs clan are well known for their sweat inducing videos and this is no different, it’s racked up on over a million views in two days, check it out after the cut.