Archaeologists have uncovered what they believe to be the remains of a long-lost ancient Greek city, Helike. Classical texts suggest that all its inhabitants perished when the city sank beneath the waves after suffering a disastrous combination of earthquake and tidal wave. Some scholars have speculated that the catastrophe may well have been the source of Plato's story of Atlantis, a land that supposedly suffered a similar fate. During the summer, Greek and American researchers ... began digging 3m deep trenches within an area of modern orchards and vineyards of about one square mile. These revealed archaic walls, classical ceramic fragments and, perhaps most significantly, evidence that the ruins had been submerged beneath the sea. We uncovered archaic walls buried in clay containing sea shells," said one of the researchers, Dr Steven Soter from the American Museum of Natural History.