A computer graphic shows the concentric rings that may have existed during Atlantis' ancient heyday. Scientists have seen evidence of such submerged structures beneath the vast marshlands of southern Spain's Dona Ana Park.
t's been half a century since three inmates pulled off a Houdini-like escape from America's most foreboding maximum security prison, Alcatraz, in San Francisco Bay. On the night of June 11, 1962, Frank Lee Morris and brothers Clarence and John Anglin climbed through spoon-dug tunnels to escape the 'The Rock', launching themselves into choppy seas on a raft made of rubber raincoats. The fugitives - all bank robbers - were never found despite one of the biggest-scale manhunts in history.