President Barack Obama, waves as he walks with his daughters Sasha and Malia, first lady Michelle Obama and mother-in-law Marian Robinson, to St. John's Church in Washington, Monday, Jan. 21, 2013, for a church service during the 57th Presidential Inauguration. (AP Photo/Jacquelyn Martin)
Gallery: President Obama's second inauguration
Jan. 21, 2013 @ 02:45 PM
Declaring “our work begins today”, President Barack Obama vowed to “finished what we started” four years ago as hundreds of thousands of inauguration-goers gathered on the historic National Mall in anticipation of his oath-taking for a second term.