MSNBC Digital Documentaries 04/01/16

Racing up the Eiffel Tower, 2 steps at a time

A group of amateur and professional runners competed in the second annual ‘La Verticale de la Tour Eiffel,’ a foot race up the stairs of the Eiffel Tower. It's part of vertical racing, in which athletes compete to reach the top of skyscrapers across the world and not collapse along the way. ... more Duration: {{video.duration.momentjs}}