Archaeologists
tell us that the walls of Sacsahuaman rose ten feet higher than their remnants.
That additional ten feet of stones supplied the building materials for the cathedrals
and casas of the conquistadors.
It is generally conceded that these stones were much smaller than those
lithic monsters that remain.
Perhaps the upper part of the walls, constructed of small, regularly-shaped
stones was the only part of Sacsahuaman that was built by the Incas and
"finished in 1508." This could explain why no one at the time
of the conquest seemed to know how those mighty walls were built.