Catholic pilgrims ride their horses after praying at the Basilica of the National Shrine of Our Lady Aparecida (in background), in the city of Aparecida do Norte, about 240 km (150 miles) southwest of Rio de Janeiro May 10, 2013. Pope Francis travels to Rio de Janeiro to attend the World Youth Day celebrations from July 23 to 28, and will lead a mass on June 24 at the Basilica. REUTERS/Paulo Whitaker (BRAZIL - Tags: RELIGION ANIMALS)