As street spots become increasingly over-skated, a new breed of skateboarders are heading underground to build their own little slice of shred-paradise. In an old cellar vault in Vienna, Philipp Schuster and friends built an underground DIY bowl; 592 square feet of harsh trannies, claustrophobic corners and one-of-a-kind acoustics. It's known as The Concrete Monster, and this thing will eat you alive if you're not on your A-game. _ Experience the world of Red Bull like you have never seen it before. With the best action sports clips on the web and original series, prepare for your "stoke factor" to be at an all time high. Watch Red Bull TV: http://win.gs/WatchRBTV See into our world: http://goo.gl/J49U Red Bull on Facebook: http://win.gs/redbullfb Red Bull on Twitter: http://win.gs/redbulltwitter Subscribe to Red Bull on Youtube: http://win.gs/SubToRedBull Subscribe to the Red Bulletin: http://win.gs/TheRedBulletin Sign up for our Newsletter here: http://win.gs/RedBullNewsletter