Photos: Pope Benedict XVI through the years
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REGENSBURG, GERMANY - SEPTEMBER 12: Pope Benedict XVI celebrates the holy mass on the Islinger Feld on September 12, 2006 in Regensburg, Germany. 250,000 believers were expected to attend the mass, celebrated in an open field of roughly 300,000 square meters just south of the city of Regensburg. The field rises slightly towards the altar hill, giving pilgrims clear views. (Photo by Alexander Heimann/Getty Images)
