. >> is that a longboard, dude? >> most relaxed. people cruising to work down the street, chilling on their longboard. urban punker here decided to take his longboarding to a different place. >> i'm going to go up there now. >> ye going to go up there. >> climb up the outside of this very old building from back in the day. >> don't damage anything, bro. >> he seems to be taking it carefully, quite respectfully, as well. i'll give him that much. goes through the gate right here, gets himself up on the roof. might be seeing a new genre of video. >> uh-huh, uh-huh. beautiful view. looks really pretty. holy smokes. sidewalks, they are about the same size all the time. >> except you're not 2,000 feet up in the air. >> yeah, clearly 2,000 feet, christian, excellent. it's all a mind game really. as long as you feel you're riding on the pavement instead of the building, you should be fine. >> there's this thing, lose your focus just a second and go that way instead of straight. >> fortunately, he stays where he needs to. down below. let's s