Pope Francis waves from the pope-mobile during his inauguration Mass at St. Peter's Square on Tuesday (March 19) at the Vatican. RNS photo by Andrea Sabbadini

Photo Gallery: Pope Francis celebrates inaugural Mass

Today Pope Francis celebrated Mass at the Vatican. Francis was slowly driven around a sun-drenched St. Peter’s Square in an open-top car, shunning the bulletproof, air-conditioned popemobile preferred by his predecessors. At one point, he asked to stop the car and got out to bless a disabled person.