Another mystery thats been on my mind is, The Lost City of Atlantis. Everyone has heard the story, first mentioned by Plato. Here is Plato's introduction to Atlantis in 'Timaeus', first written in 360BC.
For it is related in our records how once upon a time your State stayed the course of a mighty host, which, starting from a distant point in the Atlantic ocean, was insolently advancing to attack the whole of Europe, and Asia to boot. For the ocean there was at that time navigable; for in front of the mouth which you Greeks call, as you say, 'the pillars of Heracles,' there lay an island which was larger than Libya and Asia together; and it was possible for the travelers of that time to cross from it to the other islands, and from the islands to the whole of the continent over against them which encompasses that veritable ocean. For all that we have here, lying within the mouth of which we speak, is evidently a haven having a narrow entrance; but that yonder is a real ocean, and the land surrounding it may most rightly be called, in the fullest and truest sense, a continent. Now in this island of Atlantis there existed a confederation of kings, of great and marvelous power, which held sway over all the island, and over many other islands also and parts of the continent.
Over the years, the idea of a lost continent became geologically impossible, due to the widely increased understanding of plate tectonics around the 1960s. There have been dozens of locations prophesied for Atlantis over the passed hundred years. A lot of people actually believe that Atlantis is not in the Atlantic after all. Most of these locations were thought of by psychics or other pseudoscientific means, though many of these proposed locations, share the same exact characteristics of what happened to Atlantis, a catastrophic end.
Many people today believe that Atlantis was once an advance civilization. This was mentioned by Edgar Cace, a psychic, who suggested that it was originally a continent-sized region extending from the Azores to the Bahamas, holding an ancient, highly evolved civilization which had ships and aircraft powered by a mysterious form of energy crystal. He also predicted that parts of Atlantis would rise in 1968 or 1969.
In 1968, it actually happened. The Bimini Road is an underwater rock formation, of large rectangular stones, near North Bimini island in the Bahamas, that was founded by J. Manson Valentine.
It will never go away you know, Atlantis will always be thought of as a large continent with an advance civilization, that will never be found.