![NOVA Science Video Podcast | PBS show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/796/small/nova-science-video-podcast-pbs.jpg)
Summary: A restoration project is underway at Chartres Cathedral, where experts are getting a clearer view of just how colorful the cathedrals were in medieval times. For more, watch "Building the Great Cathedrals" airing October 19th at 8pm on PBS. Or go to pbs.org/nova. Video podcast produced for NOVA by Providence Pictures.