Marcello Cosci (1929- 2009) was former head of Siena University’s archaeological photo-interpretation department. After extensive studies of satellite imagery Professor 
Cosci arrived at the remarkable conclusion that Sherbro Island off the coast of Sierra Leone had features that matched Plato’s description of Atlantis.
An Italian website offers some of his conclusions in a pdf format(a). Cosci has published his theory as well as relevant images in book form[611].
