An expensive journey to Washington, a long wait in the cold, shoulder-to-shoulder crowds, intense security. It wasn't easy or trivial to be one of the more than 800,000 people in D.C. for President Obama's second inauguration. Who were they, and what compelled those who attended to be there in person? CNN iReport and Instagram teamed up to find out. Browse the profiles below to find out who attended the inauguration, and then read about some of the trends we discovered in their photos.
Were you in the crowd at the inauguration? Tag your Instagram photos #CNN and tell us why you attended. Or add your photo and story via CNN iReport.