Standing before hundreds of thousands of witnesses, President Obama swore to "preserve, protect, and defend the Constitution of the United States" as he took the oath of office at the U.S. Capitol in Washington D.C. The ceremonial Inauguration for the public followed a small event on Sunday during which President Obama was officially sworn in to start his second term.
This panorama is composed of 28 separate images stitched together with software. Use the navigation buttons to move left, right or to zoom. (John Makely / NBC News)