This image taken from video provided by CTV via AP video shows the helicopter carrying Pope Benedict XVI on his way to the papal retreat at Castel Gandolfo passing over the Colosseum in

 

              This image taken from video provided by CTV via AP video shows the helicopter carrying Pope Benedict XVI on his way to the papal retreat at Castel Gandolfo passing over the Colosseum in
This image taken from video provided by CTV via AP video shows the helicopter carrying Pope Benedict XVI on his way to the papal retreat at Castel Gandolfo passing over the Colosseum in Rome, Thursday, Feb. 28, 2013. Benedict XVI greeted the faithful for the last time as pope on Thursday, telling tearful well-wishers that he is beginning the final stage of his life as "simply a pilgrim," hours before he becomes the first pontiff in 600 years to resign. The pope's journey into retirement began with an emotion-drenched sendoff from the Vatican, with Swiss Guards in full regalia standing in attention and prelates kneeling to kiss the papal ring — Benedict's closest aide weeping by his side. (AP Photo/CTV via AP Video)