An expedition to the Strait of Gibraltar may solve one of the world's greatest mysteries, reports Roger HighfieldFor more than two millennia, many of the world's greatest adventurers, explorers and thinkers have sought the fabled Lost City of Atlantis.Next month, an expedition to hunt for its remains among submerged Gibraltarian islands will be unveiled at the Royal Geographical Society, London, by a renowned geologist, Prof Jacques Collina-Girard, and the leaders of the Titanic expeditions.First described by Plato in 360 BC, many have written off the story as a moralistic tale, a Utopia that was located in the mind of the...