Forget the Racers, the Tour de France Is a Marvel of Engineering

The Tour de France is literally a rolling circus. It hits two towns every day, complete with a parade of floats and, hours later, the spectacle of speed and pure athleticism. While the 2,200-mile route is certainly an impressive ride for racers, the real marvel is the support crews making the Tour — some 4,500 men and women building the start and finish areas, podiums, technical zones, and press area. Workers often start their days at 5 a.m. to set up barriers, and don't sleep until they reach the next day's town, at around 1 a.m.

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While this logistical ballet doesn't offer 40-mph sprints or soaring mountain passes, the hidden support structure of the Tour de France is a feat of seriously impressive engineering. Take a closer look at how the Tour de France happens with GoPro's new video.

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