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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. View 20 Beautiful Lighthouses That Lead the Way to Serene Scenes

    2 days ago · View 20 Beautiful Lighthouses That Lead the Way to Serene Scenes These highlights from the Smithsonian Magazine Photo Contest include cliffside towers and lovely ...

  4. 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 …

  5. Lighthouse Friends

    Dec 30, 2025 · This site includes photographs, directions, histories, and GPS coordinates garnered while personally visiting every lighthouse in the United States and nearly every …

  6. Lighthouse of Alexandria - Wikipedia

    The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria, [a] was a lighthouse built by the Ptolemaic Kingdom of Ancient Egypt, during the reign of Ptolemy II Philadelphus …

  7. Lighthouse - Chrome Web Store

    Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps. When auditing a page, Lighthouse runs a barrage of tests …

  8. U.S. Lighthouse Near Me | Lighthouse Guide

    A lighthouse is a tower with a bright light on the top. It helps warn sea travelers of dangerous areas and serves as a navigational aid that helps to keep vessels of all sizes safe.

  9. 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 …

  10. Cape Lookout Lighthouse

    The Cape Lookout Lighthouse we know today was put into service on November 1, 1859. The lighthouse is 163 feet tall with its focal plane (height at which light is emitted) at 150 feet. It is …