One risk-taker looks out over the skyline on a metal ladder. While simply standing on top of a skyscraper may make many people tremble, a group of thrill-seekers, led by 20-year-old Russian photographer Denis Krasnov, ascended to altitudes of some 300 meters in Hong Kong. They took mind-blowing photos of hanging off the side of rooftops, standing at the top of a metal column without safety gear and many others. Krasnov gathered risk-takers from China, Australia and Russia.[Photo/IC]