Sherbro Island
Sherbro Island off the West African state of Sierra Leone has joined the ranks of suggested Atlantis locations. In 2007 a former head of Siena University’s archaeological photo-interpretation department, Marcello Cosci, published a book, in Italian, outlining this radical new theory. He has based his views on a protracted study of satellite imagery of the island that appears to show a citadel surrounded by three ditches plus a canal, matching Plato’s description of Atlantis.