"The Great Pyramid at Giza is known to have an amazing character ... this phenomenon in his 1975 book 'The Pyramids of Egypt'. Edwards observed that the sides of the Great Pyramid of Giza are ...

The Great Pyramid’s sides, for example, each have a consistent gradient of 52 degrees. The precision with which pyramids were constructed shows that these scribes were seriously skilled ...

Although many theories exist, including ramps that envelop the entire pyramid, to intricate construction methods from the inside out, the only evidence we have left are these pyramids themselves.

The Great Pyramid of Giza, thought to have four sides, may actually have eight ... its concavity—proof that some secrets of the pyramids lie beyond ground-level observation.