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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 | 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 …

  3. 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 …

  4. 14 Must-See Lighthouses Around the U.S. - National Trust for …

    Enjoy this handy guide featuring 14 of our favorite lighthouses in the U.S. Want even more great lighthouses? Check out this guide showcasing lighthouses from the Great Lakes to the Gulf …

  5. Lighthouse Friends

    6 days ago · 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. 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 …

  8. 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 …

  9. Home | United States Lighthouse Society

    Nov 14, 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 …

  10. History of Lighthouses in the United States - U.S. National Park …

    Feb 7, 2025 · Learn more about the history of lighthouses and other navigational aids in the United States. During the colonial period in America, individual colonies provided aids to …