Hundreds of thousands of people witnessed Monday's public inauguration ceremony on the National Mall in Washington, D.C.
The Second Inauguration of President Barack Obama
17
Secretary of State Hillary Clinton and former President Bill Clinton speak with former President Jimmy Carter at the ceremonial swearing-in for President Barack Obama at the U.S. Capitol in Washington, Jan. 21, 2013.
18
President Barack Obama arrives on the West Front of the Capitol in Washington, Jan. 21, 2013, for his ceremonial swearing-in ceremony during the 57th Presidential Inauguration.
19
Security lines Pennsylvania Avenue in Washington, Monday, Jan. 21, 2013, prior to the start of the 57th Presidential Inaugural Parade.
20
People wave at President Barack Obama and Vice President Joe Biden as their limousine passes Monday, Jan. 21, 2013, in Washington.