Volcanic ridges in Antarctica may explain ancient maps of ice-less Antarctica
So apparently they have just discovered some of the highest concentrations of volcanos in the world in Antarctica: https://www.theguardian.com/world/2017/aug/12/scientists-discover-91-volcanos-antarctica It (sort of) explains how it's possible that the Ancients could have charted the region in mysterious maps on which Renaissance-era cartographers based some of their own very accurate maps of a snowless, iceless Earth-bottom. These maps are known to be reasonably accurate when modern scientists have actually checked where all the land is under the snow. These maps' existences have also been embraced by theorists who hold the view that the ancients travelled around the world before an Ice Age that wiped out civilisations - or perhaps one world civilisation that was more highly advanced than we give credit for. (Graham Hancock is one such writer.) In pop culture, they're what the original Alien Vs Predator plot hung on, but it crops up far less in DaVinciCode or Indiana Jones...