Imagine you live or work in a skyscraper on one of the upper floors. Normally you would not expect somebody to look inside through the windows, except perhaps for the window cleaners. But there is one face you should be prepared for. The one of Alain Robert. The exceptional french climber prefers the exterior front of tall buildings, the taller the better. He already climbed up onto lots of impressive buildings, bridges and monuments all around the globe. Sometimes without offical permission, which often caused lots of trouble when he returned back to the safe bottom.