It is possible only the granite foundation layers were used to cover the underground cities and the Great Pyramid was not finished after the 3100 BC event, but the salt water stains on the outside of the pyramid contradict this
Prior to the underground cities in Anatolia which protected them from the destructions of Venus and Mars, the progeny of Jove survived in underground cities on the Giza Plateau.
“The Giza Labyrinth & How the Pyramids Saved Humanity | Ancient Architects” from the Ancient Architects channel
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