A crack between two windows. More than a hundred metres above ground. French climber Titouan Leduc makes a perilous climb up the Franklin Tower in Paris's business district of La Défense. Driven by the "unique sensation" of the ascent, and inspired by legendary daredevil Alain 'The French Spiderman' Robert, Leduc accepts the dangers that come with his hobby. "Fear is natural. It's normal to be scared before a climb. (...) That's what feeds you for what's to come and for success on the skyscraper." IMAGES AND SOUNDBITES