www.my-mu.com/mapgallery.html, www.youtube.com,
http://jack.churchward.com, www.bibliotecapleyades.net/atlantida_mu/esp_lemuria_7.htm,
http://en.wikipedia.org/wiki/Mu_(lost_continent)
http://atlantisrisingmagazine.com/category/stories/atlantology/atlantis,
Atlantis could be part parallel & part echo of Lemuria, Frank Joseph Hoff of, www.atlan.org has an interesting POV.
There is also, Atlantis:_The_Antediluvian_World (1882) by Ignatius_L._Donnelly, www.youtube.com/watch?v=EwuCSdx0RsE, www.sacred-texts.com/atl/ataw/index.htm
Remnants of various ancient civilizations can be found all over the world.
www.dailymail.co.uk/Britains-Atlantis-North-sea--huge-undersea-kingdom-swamped-tsunami-5-500-years-ago, www.cbsnews.com/doggerland-northern-europes-own-lost-city-of-atlantis-discovered-off-scotland, www.thesun.co.uk/Atlantis-spotted-on-ocean-floor-off-Africa
Of course, its good to be skeptical in order to consider things from many perspectives.
www.skepdic.com/atlantis.html
However, being too skeptical just might filter out ones curiosity of hidden history on this & perhaps even other worlds.
Graham-Hancock: Beyond Atlantis
Lemuria: The Hidden History... www.youtube.com,
www.secretsinplainsight.com/blog, www.youtube.com
The Book_of_Enoch, www.youtube.com, www.sacred-texts.com/bib/boe,
www.ageofdeceit.com, www.youtube.com
Was Antarctica once in the Pacific Ocean in the form of Mu, the lost_continent? Or in the Atlantic Ocean in the very ancient past, as Atlantis? In any case, Antarctica was once in a much warmer climatic zone, perhaps like Australia & South America are today.
The earth is billions of years old & a lot of things have happened on the continents & in the oceans.
http://en.wikipedia.org/wiki/Extinction_event#Major_extinction_events,
http://theextinctionprotocol.wordpress.com, http://en.wikipedia.org/wiki/Hindu_cycle_of_the_universe, www.civilization.ca/cmc/exhibitions/civil/maya/mmc07eng.shtml, http://mukto-mona.net/science/skybreak/creation_myths.htm
What might something like this look like if it were underwater for tens of thousands or even millions of years?
www.spaceimaging.com/CorpSite/gallery/detail.aspx?iid=55&gid=43
On a geological time scale what was once on land can easily become submerged & what was once on the sea bed could become part of a mountain.