A photographer runs next to a burning public bath during clashes between demonstrators and National Force soldiers near Hotel Windsor, where the auction for Libra offshore oilfield will take place, in Rio de Janeiro, on October 21. Brazil geared up on Monday to sell production rights to Libra, its largest-ever oil discovery, in a landmark auction that sparked widespread nationalist protests even though most of the world's premier energy companies opted to stay away. Reuters/Sergio Moraes