Jan. 21, 2013 -- intro: Barack Obama participated in inauguration ceremonies at the Capitol in Washington, D.C. on Monday to mark the beginning of his second term as president of the United States. Hundreds of thousands of people traveled from all over the country to witness the swearing-in ceremony and Obama's inaugural address. Here's a look at how people responded and celebrated.
quicklist: 1 title: The Dawn of Obama's Second Term text: The Capitol building appears in the morning light. People began gathering for the ceremony before the sun rose. Officials estimated that 800,000 people might turn up to join in the revelry.
quicklist: 2 title: Waiting text: Hundreds of people line up along a barricade near the Capitol to watch the inauguration.
quicklist: 3 title: A Second Inauguration text: Members of the Coeur d'Alene tribe are excited to attend their second inauguration. "This can't match the first inauguration with the history of a man of color beign elected for the first time," they said, "but we're excited because he's kept his promises to tribes. Now we hope he addresses the issue of gun control."
quicklist: 4 title: A Family Day to Remember text: "This is his last term in office," Cydnii Harris said. "I wanted to be a part of history with my family."
quicklist: 5 title: The Washington Monument text: Crowds fill the National Mall, surrounding the Washington Monument.
quicklist: 6 title: Immigration Reform text: "I'm really hoping he gets comprehensive immigration reform through," Washington, D.C. resident Melanie Mager said.
quicklist: 7 title: Armed Forces text: Service members take a moment to share a laugh as they help direct inauguration attendees to their seats.
quicklist: 8 title: Bearing Witness to History text: Tifani Hightower and Britney James are bundled up for the chilly weather, but they don't mind the cold. "It's history!" they exclaimed in unison. "It's our first time [at an inauguration] and we're so excited to see history," Hightower said.
quicklist: 9 title: War Veterans text: A veteran makes his way to the inauguration ceremonies at the Capitol.
quicklist: 10 title: Honoring a Promise text: Washington state residents Jamia McRae and Maria Orosco attended an Obam rally in Seattle, and promised themselves they would travel to the inauguration if Obama was reelected. "We said we'd come and here we are," Orosco said.
quicklist: 11 title: The First Daughters text: President Barack Obama's daughters Malia Obama, left, and Sasha Obama, arrive on the West Front of the Capitol in Washington.
quicklist: 12 title: A Latina Justice Makes History text: Supreme Court Justice Sonia Sotomayor and Elana Kagan arrives on the West Front of the Capitol in Washington. Sotomayor, who administered the oath of office to Vice President Biden, is the first Latino to swear in a vice president.
quicklist: 13 title: The Clintons text: President Barack Obama is greeted by Secretary of State Hillary Clinton and former President Bill Clinton.
quicklist: 14 title: The Crowd text: President Barack Obama supporters arrive on the National Mall in Washington.
quicklist: 15 title: The President text: President Barack Obama greets people on the West Front of the Capitol in Washington.
quicklist: 16 title: Festive Supporters text: Supporters of President Barack Obama wait on the National Mall in Washington.
quicklist: 17 title: Vendors text: Vendors tempted inauguration attendees with a variety of Obama-related items, from t-shirts plastered with the president's face to more subdued commemorative newspapers.
quicklist: 18 title: Students Call for Immigration Reform text: Tony Painter (left) wants Obama to improve the student-loan situation and work on reforming immigration policies in his second term as president.