An indigenous man sings during a protest against austerity measures, outside the state legislature, in Rio de Janeiro, Brazil.
Motorcyclists drive through a street decorated with flowers on the eve of celebrations marking the birth of Islam's Prophet Muhammad, in Lahore, Pakistan.
Children dressed as Santa Claus participate in a parade held to collect food for the needy, in Lisbon, Portugal.
Chinese paramilitary police border guards train in the snow at Mohe County in the northeast Heilongjiang province, on the border with Russia.
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