I have found two “theories” that make the argument that Atlantis was a real place; both believe they have found enough archaeological evidence to substantiate their claim. Regarding the first theory, Richard Freund, a professor at Hartford University, and his team believe that they have found the ruins of Atlantis in a marsh in southern Spain. The article on the find states this, “Using satellite photography, ground-penetrating radar, underwater technology and some old-fashioned reasoning, Freund said his team pinpointed the city in a vast marsh in southern Spain that dries out one month a year.” http://www.aolnews.com/2011/03/13/has-lost-city-of-atlantis-been-found-in-spanish-marsh/ His theory includes the discoveries of nearby “memorial cities” laid out in the same pattern as Plato’s rendering of Atlantis. Along with the fact that these cities also have standing stones with images of the Atlantis layout carved into them, this has convinced him that he is correct in his assumption that the swamp site was Atlantis.
The second theory, proposed by British historian Andrew Collins in the year 2000, is that Cuba was the hub of Atlantis. http://www.andrewcollins.com/page/articles/atlantiscuba.htm The recently found underwater archaeological evidence he presents is this, “Hi-tech sonar equipment aboard the ‘Ulises’…detected a several-kilometer square area of what appear to be roads, pyramids and other building structures at a depth of 2,200 feet.” He also cites other geographical evidence that some sort of explosion occurred when the Carolina Bays Comet exploded and rained down on the area, which could have caused mass devastation and possibly destroyed and/or changed Atlantis’ landscape. There are also petroglyphs in a cave on an island off of the coast of Cuba that appear to refer to the sky. He uses ancient myths of nearby Caribbean cultures to back this assumption. These stories tell that there was a cataclysmic flood and fire falling from the sky. He also says there are creation myths of Mesoamerican people that their ancestors came from the sea.
To compare the two, they offer quite the same sorts of evidence: underwater structures, stone carvings, and other supporting geographical evidence. There are more myths associated with the Cuba theory, but they are just myths, and as far as I can find, not connected concretely to the archaeological evidence. Both of these theories are interesting in a scientific sense, new finds of ancient cultures, but there is way to much assumption made by both in tying them to Playto’s Atlantis.