Cmon, everybody knows the Sphinx was a subway entrance to the underground EHSR (Eqyptian High Speed Rail) system connected to all the worldwide underground tunnel systems, originally built to transport giants and Nephilim between pyramids globally. It’s so obvious.
You scoff, but when the Pyramids were built that civilization definitely knew that Earth was a sphere. Check out some of the work by Dr Graham Hancock and be prepared to leave dogma by the wayside. Here's a good start: https://grahamhancock.com/schmitze1/.