As more than a billion Catholics around the world await the election of a new pope, all eyes will be on the Sistine Chapel, where 133 cardinals will begin the secretive process known as a conclave.

Catholic cardinals are set to gather for the 2025 conclave to choose Pope Francis' successor. Here's how long it could take.

Some 135 cardinals will enter the Sistine Chapel on Wednesday to presumably elevate one of their own to the papacy. When the white smoke blows, signaling the election of a new pope, the world will watch not only the man who emerges in his new white cassock,