The ancients all over the world built incredible buildings, statues and other structures using huge rocks or blocks of rock weight five, ten, even twenty tons.  There has been a lot of speculation in recent decades over how they cut such huge rocks, how the moved them sometimes quite a few miles to the building site, how they got them into place on these huge structures and how they got them to fit together so well that they have stayed together for many centuries without any mortar.
    Another interesting question that is often overlooked in all this speculation is why?  Why use such enormous stone?  Why not use much smaller stones that could be more easily cut, moved, and assembled at the building site?  So far, I have not seen any book address this question.  One possibility is that the builders felt that much smaller stones would not have keep the structure together for so long.  Another possibility though is based on something that I read in the book "Return of the Children of Light" by Judith Bluestone Polich.  She points out that descendants of the Toltec shaman feel vibration in the rocks when they visit Teotihuacan that bring back memories of ancient times and ancient ancestors.  These vibrations also help energize the chakras.  If that is true, than it is possible that the blocks of stone needed to be very large to generate the correct frequencies.  That cutting them much smaller would have changed the vibrations so they were no longer effective.