In observance of Martin Luther King Jr. Day, all Lighthouse branches and offices will be closed on Monday, January 19, 2026.

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 sea or on …

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 Lighthouse as …

Scattered along the shoreline, Michigan’s lighthouses offer waypoints to those on water and are landmarks of history for those on land. Michigan has more lighthouses than any other state and all of …

Mar 18, 2025 · This Michigan Travel Guide will walk you through all the best lighthouses in Michigan from the southernmost Lake Michigan coasts to Mackinaw City and beyond into the Upper …

Dec 24, 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 Canada.

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.

18 hours 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 ...

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 guiding them to their …

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 against the page,...