Supreme Council of Antiquities.
As no access shafts existed for the upper four chambers — unlike Davison's Chamber — they were completely inaccessible until this point.
Surveys and design Comparison of approximate profiles of the Great Pyramid of Giza with some notable pyramidal or near-pyramidal buildings.
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Pliny the Elder During the , argues that "bridges" were used to transport stones to the top of the Great Pyramid.
Alignment to the cardinal directions The sides of the Great Pyramid's base are closely aligned to the four geographic not magnetic cardinal directions, deviating on average.