Roughly 7 kilometres off the coast of modern Egypt, beneath the shallow waters of the Bay of Aboukir, lies a city that most of the world has forgotten existed. Known in antiquity as Thonis-Heracleion, it was for centuries the largest port on Egypt's Mediterranean coast, the gateway through which merchants, mercenaries, and pilgrims passed before reaching the Nile delta.

Roughly 7 kilometres off the coast of modern Egypt, beneath the shallow waters of the Bay of Aboukir, lies a city that most of the world has forgotten existed. Known in antiquity…

A lost Egyptian city, Thonis-Heracleion, submerged over 2,000 years ago, is yielding spectacular treasures. Archaeologists found gold jewelry, silver ritual objects, and a…