In this stomach-churning footage a fearless teen tests his muscles by doing chin-ups – atop a CRANE.
Full time stuntman George King, 19, has been passionate about climbing since the age of 13 and scaled the crane in East London without a harness.
George, from Stratford, said his family do not encourage his climbs but accept his unusual hobby as it makes the former depression sufferer happy.
In the terrifying video, a topless George can be seen performing pull ups on the white bars of the huge structure with no safety equipment whatsoever
