Ancient CivilizationsThe enigmatic ‘Ancient Alien Library’ concealed beneath the Great Sphinx Posted on March 26, 2025 by Administrator The legendary Great Sphinx of Giza in Egypt holds the potential to unlock the mysterious “Hall of Treasures of Knowledge,” according to some researchers who speculate that this hidden chamber could contain ancient documents from the lost city of Atlantis. The Daily Star reports on the belief among certain individuals that there exists an “alien library” beneath the structure of the Sphinx, believed to hold knowledge left behind by extraterrestrial beings.