Carlo Sanna, the jockey of "Valdimontone" or Ram parish, crashes at the San Martino curve during the Palio of Siena horse race in Siena on August 16. Each July 2 and August 16, almost without fail since the mid-1600s, 10 riders have hurtled bareback around Siena's shell-shaped central square in a desperate bid to win the Palio, a silk banner depicting the Madonna and child. Reuters/Stefano Rellandini