NOVA: Operation Lighthouse Rescue
Preview | 30s
"Operation Lighthouse Rescue" – A historic lighthouse perched high on the cliffs of Martha's Vineyard may soon be the next victim of relentless erosion. Join engineers as they race to rescue this national treasure. (Also Tue. 5/10 at 2 a.m.)
Aired: 05/04/16
Expired: 05/04/16
