Among all the continents of Earth, Antarctica remains both the most inhospitable and the most mysterious. Today the only humans on the landmass are researchers and their support staff, charged with studying climate change, the local ecosystem and the unique creatures that call the freezing, ice-riddled continent home. Yet for centuries various researchers have argued there's more to the history of Antarctica -- that, before it was ever 'officially discovered', Antarctica was home to a long-forgotten civilization, the existence of which could fundamentally rewrite the story of human history.