instead he climbs up some of the city 's tallest buildings , without ropes or harnesses , before sitting on precarious ledges - all in the name of capturing the perfect photograph .
many of the 18-year-old 's vertigo-inducing images , which include some shot 72 storeys above street level , show his feet dangling off the skyscrapers , and says that building security often stop him from scaling the buildings , but even if he can get past the guards , he has to tackle fierce winds which blow above the streets that