Posted July 12, 2011
No, it's not really Atlantis, but geologists did find evidence of a large island/continent off the coast of Scotland that sank beneath the ocean about 55 million years ago. Though it is interesting to note that a land mass as large as that could actually "disappear without a trace" like the legendary Atlantis is purported to have done.
http://io9.com/5820246/this-lost-continent-off-the-coast-of-scotland-disappeared-beneath-the-ocean-55-million-years-ago
http://io9.com/5820246/this-lost-continent-off-the-coast-of-scotland-disappeared-beneath-the-ocean-55-million-years-ago