Today, Sept. 10, is Maine Open Lighthouse Day. The annual event is sponsored by the United States Coast Guard, the Maine Office of Tourism and the American Lighthouse Foundation.

Maine Open Lighthouse Day attracts between 15,000 to 18,000 visitors every year and it gives you the chance to visit and learn about over two dozen historic Maine lighthouses.

You and your family can explore over two dozen historic lighthouses this year. See a list of participating sites.