Riders burn an average of 5,000–7,000 calories per day. Over the course of the entire race (which lasts about three weeks), that's roughly 120,000–140,000 calories.

Every summer, the world's best cyclists take on one of the most gruelling athletic events in modern sports—the Tour de France. Beginning this year on July 5, the 2025 race will span 21 stages and over 3,200 kilometres across France. First held in 1903 to boost newspaper sales, the Tour has grown into cycling's most iconic race. Riders compete in mountain climbs, sprints and time trials, with the race traditionally ending in Paris.

Today's image captures the peloton navigating the Col du Tourmalet during the 2021 Tour. This mountain pass is one of the most legendary and challenging climbs, reaching 2,115 metres above sea level. Whether you're a cycling enthusiast or a casual fan, the Tour offers breathtaking scenery, fierce competition and a true test of endurance.