Thousands march through iconic Buenos Aires sites in a procession honoring Pope Francis. Carrying photos of the Argentine pontiff, crucifixes, and banners, Buenos Aires residents bid a final farewell to the "pope of the poor," a few hours after he was laid to rest in Rome. "It is now up to the people to decide how we put his teachings into practice," says Oscar Vicente Ojea, President of the Argentine Episcopal Conference. "A big challenge is ahead of us," he adds. IMAGES AND SOUNDBITES