To me, this is clearly a myth because Antarctica is a dead place since it is the coldest part of the earth that is habitable. I once read in National Geographic that planes can fly in Antarctica only 2 times in a year and that is only during summer because the extreme cold tends to freeze the avgas. Now, how can an ancient civilization thrive in that cold place? But in fairness to that item, there may be an explanation for that which may be similar to the conundrum of the Pyramid in Egypt - how did those big boulders came to the desert.
After all the strange discoveries around the world, in and above and below, it's hard to say Never to anything now. Seems we're the Show Me generation... Who knows?
Hmm, very fascinating bit of news of an ancient pyramid in the Antarctica, but what of the missing tv crew missing since 2002? I don't remember any news about a missing tv crew at the Antarctica ever. There are 2 mysteries that need solving here.
There have been many questions about the South Pole and the more you learn the more unanswered questions you have. http://www.bibliotecapleyades.net/antarctica/antartica11.htm