Crazy but salute the daredevilry spirit of these climbers - WOW !! If this isn't an adventure, what is ? Moreover, they did all this without any safety harness - crazy, insane but daring !!! Some moments in the video are so palpable that it will bring out the feeling of actually climbing those cranes take the viewers. 650 meters in all and above the cloud level in the city of Shangai, China.
Oh, btw, if you are scared of heights, you shouldn't even watch this video.