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  1. Lighthouse - Wikipedia

    A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at …

  2. Lighthouse | Definition, History, Equipment, & Facts | Britannica

    Lighthouse, structure, usually with a tower, built onshore or on the seabed to serve as an aid to maritime coastal navigation, warning mariners of hazards, establishing their position, and …

  3. Lighthouse | Chrome for Developers

    Lighthouse has audits for performance, accessibility, progressive web apps, SEO, and more. You can run Lighthouse against any web page, public or requiring authentication. You can run …

  4. 15 Historic Lighthouses to Visit in New York State

    New York State happens to have a unique collection of historic lighthouses. You’ll find lighthouses along the ocean, lakes, in the middle of rivers, and in state parks—and many have become …

  5. Lighthouse Friends

    Dec 1, 2025 · This site includes photographs, directions, histories, and GPS coordinates garnered while personally visiting every lighthouse in the United States and nearly every lighthouse in …

  6. Lighthouse Facts | The Lighthouse Preservation Society

    Lighthouses are built from wood, stone, brick, reinforced concrete, iron, steel, or aluminum. They are designed to withstand local environmental conditions. For example, tall skeletal …

  7. Home | United States Lighthouse Society

    Nov 28, 2025 · The United States Lighthouse Society is a nonprofit historical and educational organization dedicated to saving and sharing the rich maritime legacy of American lighthouses …

  8. How Lighthouses Work | Lighthouse NE

    Mar 7, 2025 · For centuries, lighthouses have been key navigational aids, guiding sailors safely through treacherous waters, rocky coastlines, and dense fog. These iconic structures serve a …

  9. US-Lighthouses.com - The best source for lighthouse info

    What is a lighthouse? A lighthouse is loosely defined as a tower or other structure used to display a light for the guidance of ships to either avoid a dangerous area (shoals, etc.) or to identify a …

  10. Full List of Lighthouses - Hudson River Lighthouses

    To determine this list of "lost" lighthouses was not easy, but research with the National Archives and Records Administration as well as newspapers of the time period have helped us track …