Construction Block Precision

The Great Pyramid contains approximately 2.3million limestone blocks, each averaging 2.5 tonnes (some granite blocks weigh 80 tonnes). The blocks fit together with joints averaging 0.5millimeters — thinner than a sheet of paper. Modern stonemasons struggle to achieve this tolerance with power tools. The original Tura limestone casing stones were polished to an optical flatness, reflecting sunlight so brightly that the pyramid could be seen from space. Each block was placed with such precision that the entire 230-meter base is level to within 2.1 centimeters. By conventional theory, this was achieved by a bronze-age civilization with copper tools, wooden sledges, and no iron or wheels.