> Dwayne <dwayne@pobox.com> writes:
>
> > The lower courses of the Temple of Jupiter at Baalbeck are,
> > according to the quotes I have seen, too massive to be moved using
> > currently available technology...
If we moderns sat around thinking all day every day about how to make things out of rocks, I am quite confident we could come up with some really impressive feats. The ancients had little else to work with, and no video games to distract them. I think various commentators are correct: the ancient stone arches were approximated and the bad ones have fallen long since. spike