Over 20 years ago, Dr. Paul Farmer graduated from Harvard Medical School, and promptly moved into a local church with his wife and daughter. The reason? He wanted to reduce his expenses so he could treat the homeless in Boston for free. Watch how this man...

"Jeremy Cowart is a professional artist in Nashville, Tennessee, who has photographed rock stars such as Sting and Britney Spears. But on Saturday, he turned his lens on people unlikely to be recognized by anyone but family. Cowart staged a one-day,...