Pope Francis' confirmed his trip to the U.S. this fall will include stops in Washington and New York City, in addition to the previously announced visit to Philadelphia.
Argentinian Cardinal Jorge Mario Bergoglio, now Pope Francis I, greets the world.
Cardinal Bergoglio was named leader of the world's 1.2 billion Catholics on Wednesday.
A plume of black smoke billowed from the Vatican on Tuesday, indicating cardinals have not yet chosen a successor for Pope Benedict XVI on the first day of conclave.
The 115 cardinals tasked with electing a new pope have been locked in the Sistine Chapel, marking the start of conclave in Rome on Tuesday.
As the papal conclave begins in Rome, wrapped in mystery and secrecy, there is no indication that the 115 cardinals will be deciding between just a couple of front-runners in choosing a successor to Pope Benedict XVI.
Jamming devices to halt communication were installed at the Vatican on Monday, as part of a security lockdown ahead of the papal conclave.
The papal conclave to elect the new leader of the world's 1.2 billion Catholics will begin on Tuesday afternoon.
Pope Benedict XVI resigning due to his advanced age and health.
The pope pressed his opposition to gay marriage Friday, denouncing what he described as people manipulating their God-given identities to suit their sexual choices.
Pope joins tweeting masses with Pontifex handle.
The red, or rather scarlet, carpet will be rolled in St. Peter's Basilica on Saturday for the elevation of six cardinals.