01/21/2013 09:09 EST | Updated 01/21/2013 10:13 EST

Obama Inauguration Pictures: U.S. President Sworn In, Celebrations Continue (Photos)

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US President Barack Obama and First Lady Michelle Obama dance while attending the Commander and Chief Ball at the Washington Convention Center January 21, 2013 in Washington, DC. Obama and Biden attended Inauguration balls after being ceremonially sworn in for a second term leading the United States earlier today. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)

As U.S President Barack Obama's inaugural celebrations continued into Monday, photos captured the grandeur of the occasion.

Obama took the oath of office in a small ceremony with family members and a few reporters Sunday, as the U.S. Constitution states a president's terms begins on Jan. 20. The events continued Monday, with a public ceremony, luncheon, parade and two official balls.

Although this year's celebrations were expected to be less exciting than those of 2009, an estimated 800,000 people were to attend, according to Reuters. Nearly two million attended in 2009.

More from The Road Forward, HuffPost's special project on Obama's second-term challenges:

Canada Looks To Obama For Leadership On Oil, Environment

What Does The World Want From Obama?

Higher Expectations, Higher Hurdles

Take a look at the photos from the president's swearing-in ceremony and more from today's events.

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Obama Inauguration Photos