There should be some traces of it still. Per the legend, the last day of Atlantis was the day Sahara became a desert, so inspecting it should reveal something.

There should be some traces of it still. Per the legend, the last day of Atlantis was the day Sahara became a desert, so inspecting it should reveal something. Also, "Atlantis" is a made up term (by Plato?). Again, per the legend, that nation called themselves "lanka" and I wonder if Sri Lanka ("Holy Lanka ") was named this way for a reason.