Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Tour de France, world's biggest annual sporting event, is an amazing race and breathtaking logistical feat

Watch a 3D version of the route below: