Engineers Found Evidence of Hydraulics in an Ancient Pyramid, Solving a 4,500-Year-Old Mystery

In a preprint paper, scientists concluded that the Step Pyramid of Djoser in Saqqara, Egypt—believed to be the oldest of the ...
China Daily Global Edition

Astonishing internal structure of the Egyptian pyramids

The internal structure of the Egyptian pyramids was remarkably complex, with precise corridors and passageways, and burial ...