Guaranteed To Give You Sweaty Palms.
If you're thinking of giving this new photography craze a go, a head for heights is as essential as a camera.
Rooftopping is the heart-stopping photography movement which involves thrill seekers climbing to the top of city skyscrapers, hanging off the edge and taking pictures of the spectacular view beneath them.
Photographer Tom Ryaboi is one of the crusaders of Rooftopping. The 27-year-old, from Toronto in Canada, has climbed more than 100 buildings and produced some of the most stunning examples of the craze.

Source : Youtube