State of the art, one of the seven wonders of the Ancient World, the great lighthouse of Alexandria, built around 280 B.C., towered some 450 feet above Egypt's greatest harbor. At that height, it was ...

LAKE COUNTY, Minn. — A full-sized replica of Split Rock Lighthouse's third-order Fresnel lens — like the one that occasionally casts its beam out over Lake Superior — is among the highlights of the ...

The Point San Luis Lighthouse’s original 4 th order lens has been around since 1878. The light no longer shines but is now on display at the top of Point San Luis. Cleaning a 144-year-old lens takes ...

A lens made in 1902 has been returned to the lantern room atop the lighthouse, which was commissioned by George Washington. By James Barron Good morning. It’s Monday. Today we’ll find out why a ...

Just under a month after the restoration and preservation of the Tybee Lighthouse was completed, a prism has shattered. According to Tybee Island Historical Society Director Sarah Jones, part of the ...

A lens manufactured in France in 1902 is shining high atop Montauk Point Lighthouse once again. Earlier this month the U.S. Coast Guard relit the clamshell-shaped Fresnel lens, which guided mariners ...

The popular French lens design was originally created for lighthouses The popular French lens design was originally created for lighthouses is a senior editor and founding member of The Verge who ...

Work started Monday on a project to apply film to a tall glass structure surrounding the Piedras Blancas Lighthouse lens to protect it from ultraviolet light. Most of the work by San Luis Customs, ...

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 ...

Contractors hired by the National Park Service are midway through the delicate two-week task of reassembling the original 1858 lens of the Fire Island Lighthouse. The 9,000-pound lens was removed from ...