The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria (/ˈfɛərɒs/; Ancient Greek: ὁ Φάρος τῆς Ἀλεξανδρείας, contemporary Koine Greek pronunciation: [ho pʰá.ros tɛ̂ːs a.lek.sandrěːaːs]), was a lighthouse built by the Ptolemaic Kingdom of Ancient Egypt, during the reign of Ptolemy II Philadelphus (280–247 BC).[2] It has been estimated to have been at least 100 metres (330 ft) in overall height.[3] One of the Seven Wonders of the Ancient World, for many centuries it was one of the tallest man-made structures in the world.
The lighthouse was severely damaged by three earthquakes between 956 and 1323 AD and became an abandoned ruin. It was the third-longest surviving ancient wonder, after the Mausoleum at Halicarnassus and the extant Great Pyramid of Giza, surviving in part until 1480, when the last of its remnant stones were used to build the Citadel of Qaitbay on the site.
In 1994, a team of French archaeologists dove into the water of Alexandria's Eastern Harbour and discovered some remains of the lighthouse on the sea floor.