Before it was first located in 2000 by archaeologist Franck Goddio and the IEASM (European Institute for Underwater Archaeology), no trace of the ancient port city of Heracleion had been found, and records of it had all but disappeared. Since then, a number of dive teams have been deployed to search and map the area. Here are some of the amazing artifacts found in this sunken city so far (click an image to enlarge):
The ancient city, located just northeast of the Egyptian city of Alexandria, once served as the main Egyptian shipping port during the time of the Pharaohs.
Around the 7th or 8th century A.D. however, a combination of earthquakes and floods sunk the coastal section of land that Heracleion sat on into the depths of the Mediterranean Sea. The map below shows the cities (red) and other lands (yellow) that are now submerged.