For many centuries, the ancient Lighthouse of Alexandria, also known as the Pharos, stood among the tallest constructions on Earth, garnering recognition as one of the famous Seven Wonders of the Ancient World.
That all changed beginning in AD 956, and again in 1303, when a series of earthquakes damaged the legendary Pharos, plunging the massive stone used in its construction into the depths of the Mediterranean Sea.
Now, after more than seven centuries, the third-longest-surviving of the seven ancient wonders is rising again, offering archaeologists clues to the appearance and construction of this historic marvel.
Archaeologists with the PHAROS Project report the recovery of 22 massive blocks from the ancient lighthouse, which have remained at the bottom of the Mediterranean Sea off Egypt’s coast since the monument’s destruction 723 years ago. The international research initiative aims to use its studies of the recovered materials to digitally rebuild the structure, revealing its appearance to the modern world for the first time in centuries.
Rediscovery of One of the Ancient World’s Seven Wonders
Originally constructed in the third century BC, the ancient structure stood more than 330 feet tall before the trio of earthquakes that ultimately destroyed it. Before its destruction, the lighthouse guided ships sailing the Mediterranean for more than 1,600 years. At the modern site where the Pharos once stood, the Citadel of Quitbay, which was originally constructed beginning in 1477, features some of the original blocks from the lighthouse.
The remains of the lighthouse have been known to archaeologists for more than a century. First described in 1916 by Gaston Jondet and Raymond Weill, and again in 1940 by Sir Leopold Saville, the lighthouse was officially rediscovered as part of a UNESCO-sponsored expedition in 1968, where archaeologist Honor Frost confirmed the ruins had indeed belonged to the Pharos.
However, political tensions at that time prevented further exploration, and the site remained unexplored for several decades. Then in 1994, imagery was obtained by archaeologist Jean-Yves Empereur and cinemaphotographer Asma el-Bakri, which finally offered the world a first look at the massive ancient structure’s remains.
Today, the PHAROS Project, led by Isabelle Hairy, an archaeologist with Egypt’s Ministry of Tourism and Antiquities, and working in cooperation with the Dassault Systèmes Foundation, has successfully retrieved 22 of the massive stone blocks that once composed the entrance to the lighthouse.
Additional recoveries include portions of doorways, lintels, paving slabs, and other portions of the ancient construction. Retrieving these sunken monoliths has been no small task, as some of the paving slabs alone weigh as much as 88 tons.
Rebuilding the Ancient Pharos
Although the recovery of the ancient slabs of stone that once comprised the famous monument is a promising archaeological endeavor, the PHAROS Project’s primary aim is to use knowledge gained from their study to digitally reconstruct the lighthouse.
To achieve this, Hairy and the team plan to scan each of the huge stone blocks using modern cutting-edge photogrammetry, which will be used to create 3D models of the structure’s components. Then these will be studied and assembled digitally, providing one of the clearest views of one of the ancient world’s most imposing structures.
The research builds on close to a decade of previous work that includes the digitization of more than 100 of the lighthouse’s features that remain underwater. Altogether, the digital reassembly of the Pharos will complement existing imagery from the ancient world that depicts the lighthouse, which includes its appearance in ancient artwork, currency from the time when the Pharos was still in use, and mosaics.
Additionally, historical accounts that preserve written descriptions, like those of Abou Haggag Youssef Ibn Mohammed el-Balawi el-Andaloussi, an Arab traveler who visited Alexandria in 1166 and produced one of the most complete descriptions of the structure, will be used as part of the reconstruction effort.
Together, these combined sources of information will allow Hairy and the PHAROS Project team to reconstruct the most complete and accurate depiction of this ancient wonder, long believed to be lost to history with all the other Wonders of the Ancient World, save only for the Great Pyramid at Giza.
With its digital reconstruction, soon another of these enigmatic Seven Wonders will be available for observation and study, bringing to life another long-lost marvel of antiquity for modern eyes.
Additional details about the PHAROS Project can be found on its official website.
Micah Hanks is the Editor-in-Chief and Co-Founder of The Debrief. A longtime reporter on science, defense, and technology with a focus on space and astronomy, he can be reached at micah@thedebrief.org. Follow him on X @MicahHanks, and at micahhanks.com.