More than 2,000 navigational beacons, big and small, oversee the nation’s 60,000-mile-long coast. Now they need an upgrade.

Today, 101 years after the installation of the first modern, three-lens traffic light, yellow is the new green. Red is the new yellow. Green is the new red. It’s all very mystifying.

The unique history of the Crooked River Lighthouse’s lens in Carrabelle, Florida. The Crooked River Lighthouse’s Executive Director, Steve Allen, shares with us the unique qualities of the ...

The lens was displayed in the lighthouse's museum for 36 years after the Coast Guard replaced it with a lower-maintenance light source, according to the historical society, which owns and ...