Sneaking past guards at some of tallest structures in Moscow, 19-year-old Marat Dupri is known as the real-life Sky Walker. Dupri recently purchased a camera a few months back, and has since been documenting his life risking walks above the sketchiest sky-high spots in Russia. Hit the thumbs for a quick look at Marat's stunning photos, and this insane video clip found below. [WhuDat]