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 …

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, 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 …

20 hours ago · Built in 1872, the Yaquina Head Lighthouse sits atop a narrow point of land that extends almost a mile into the Pacific Ocean. William Dodd, Oregon, 2019

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 …

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 …

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.

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 …

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 …