The Egyptian pyramid is one of the most mysterious structures we have on Earth. Many times we will have wondered, seeing the pyramid of Khufu live or in the figure, how it could is been built, chi l'ha messa lì in quel luogo, e quando; ma soprattutto per quale ragione? Consisting of two million three hundred thousand stones, and weighing six millions tons, a mass of stones perfectly embedded like a laser, carried even from distant areas, and weighing eight tons each. When they were new, the pyramids could be compared to jewels, magnificent structures, which time has hardly scratched. But the most frequent question that comes to mind about them is: who built them? And were human beings able at that time to build something so huge and perfect? Or did they accept some outside help? And why was it so important to put them there? What was the purpose of putting them there? Now we will try to explain this great mystery, which shocked even Nicola Tesla, who was almost close to replicating them, creating free energy for the whol