A view of Del Campo square during a training session of the Palio race in Siena August 15, 2012. Every year on August 16, almost without fail since the mid-1600s, 10 riders compete bareback around Siena's shell-shaped central square in a bid to win the Palio, a silk banner depicting the Madonna and child. REUTERS/Alessandro Bianchi (ITALY - Tags: SOCIETY ANIMALS SPORT HORSE RACING)