Lighthouse of Alexandria
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The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria, was a lighthouse built by the Ptolemaic Kingdom of Ancient Egypt, during the reign of Ptolemy II Philadelphus. It has been estimated to have been at least 100 metres (330 ft) in overall height. One of the Seven Wonders of the Ancient World, for many centuries it was one of the tallest man-made structures in the world.
Lighthouse of Alexandria by Philip Galle; 1572, Rijksmuseum
A size comparison between a 1909 (inner shape) and a 2006 study (outer shape) of the building
Lighthouse remains found in the Mediterranean Sea
A mosaic depicting the Pharos of Alexandria (labeled "Ο ΦΑΡΟϹ"), from Olbia, Libya, c. 4th century AD
Lighthouse
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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 inland waterways.
The Lighthouse of Praia da Barra, on the west coast of Portugal
The Tower of Hercules lighthouse in northwest Spain
Original Winstanley lighthouse, Eddystone Rock, by Jaaziell Johnston, 1813.
John Smeaton's rebuilt version of the Eddystone Lighthouse, 1759. This represented a great step forward in lighthouse design.