Obama and Pope Francis/via Twitter @NYMag

Obama said it was "a great honor" to meet Pope Francis, saying he was a "great admirer."

Obama and Francis met for nearly an hour in the Papal Library, with the President presenting a gift to the pontiff of seeds from the White House gardens.

Pope Francis gifted Obama two medallions and a copy of "The Joy of the Gospel," which discusses inequality and poverty in the global economic system.

Obama will now travel to Saudi Arabia, where he is scheduled to meet with King Abdullah on Friday.

Read more about Obama's visit with Pope Francis at ABC News (Australia), Los Angeles Times, and Christian Science Monitor.

Reach Associate News Editor Colin Hale here. Follow him on Twitter.