Dave Chappelle spent nearly $13 million to save and rebuild a landmark in his hometown of Yellow Springs, Ohio. He bought the 1872 Union Schoolhouse - the first integrated school in the village - and turned it into a 19,000 sq ft home for public radio station WYSO. The station moved in and never looked back. "If you have the opportunity like I did, to invest in your community," he said, "then it's one of the greatest investments I've ever made."