In this photo taken with a fisheye lens people walk in St. Peter's Square at the Vatican, Sunday, March 3, 2013. Benedict XVI's 8 p.m. resignation Thursday, Feb. 28, opened what is know

 

              In this photo taken with a fisheye lens people walk in St. Peter
In this photo taken with a fisheye lens people walk in St. Peter's Square at the Vatican, Sunday, March 3, 2013. Benedict XVI's 8 p.m. resignation Thursday, Feb. 28, opened what is known as the "sede vacante'' or "vacant see'', the transition period between papacies when a few key Vatican officials take charge of running the church. (AP Photo/Andrew Medichini)