It's Maine Open Lighthouse Day today! Plus, at the end of the show, we'll check in with the stars of the Animal Planet show North Woods Law.

Part 1: The Owl's Head Lighthouse (above) is one of 21 lighthouses open today until 3 p.m. as part of Maine Open Lighthouse Day. Steve Lyons of the Maine Office of Tourism explains the mystique.

Part 2: The American Lighthouse Foundation has been around for 20 years saving and maintaining historic lighthouses in the Northeast. Learn more about the nonprofit, which has invested more than $3.25 million in the last 12 years.

Part 3: The Maine Lighthouse Museum in Rockland is worth the trip. Plus it's open more than one day a year!

Part 4: The Maine Wildlife Park in Gray is holding North Woods Law Day on Saturday, Sept. 28. Superintendent Kurt Johnson tells us all about it. Last year, the line ot meet the wardens was a long one, so get there early!

Part 5: North Woods Law is in its third season. Let's take a look behind the scenes at all the good, bad and colorful parts of being a Maine Game Warden.