Watch Pope Francis celebrate mass during his 2015 visit to Philadelphia.

The Vatican announced on Monday that Pope Francis has died at the age of 88. FOX 29's Chris O'Connell is taking a look back at Pope Francis' time as pope, including his historic trip to Philadelphia.

Pope Francis addressed a crowd from the front of Independence Mall on during his North American visit back in 2015.

During his 2015 visit to Philadelphia, Pope Francis visited Curran-Fromhold Correctional Facility where he spoke to prisoners.

Philadelphia Archbishop Nelson J. Pérez speaks about the passing of Pope Francis, who died the Monday after Easter at the age of 88.

During his 2015 visit to Philadelphia, Pope Francis stopped blessed many children, including these two as celebrated mass at the Cathedral Basilica.

Pope Francis greeted crowds at the Vatican in his Popemobile the day before his death.

A special moment at the Vatican on Easter Sunday has become a historic one for those who witnessed Pope Francis' final moments before his death the next day.

With the passing of Pope Francis, we are taking a look back at his 2015 visit to North America - including Cuba, New York, ...

Jason Douglas, a member of Philadelphia's Cathedral Basilica of Saints Peter and Paul, reflects of the legacy of Pope Francis, who has died at the age of 88.

In his last public appearance before his death, Pope Francis greeted crowds at the Vatican on Easter Sunday.

FOX 29's Greg Payne talks with Dennis Gill, pastor and director or the Archdiocese of Philadelphia, after Pope Francis died on Easter Monday at the age of 88.