The Tour de France, the world's greatest cycling race, is celebrating its 100th anniversary this year. Fifteen million spectators are expected to line the 21-stage course for this year's centennial celebration.
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The 100th Tour de France has begun in Corsica. The world’s greatest cycling race is expected to pull 15 million spectators who will line the route over the three-week, 21-stage course during the centennial celebration.