Another issue is the precision with which the pyramids were built.
"The precision with which the Pyramid of Khufu (the Great Pyramid) was executed is often the source of marvel and speculation. The orientation of the Great Pyramid in relationship to true north is such as to cause it to be declared the "most accurately oriented edifice on earth." That is to say, its four sides are directed to the four cardinal points of the compass with less than 3 minutes of one degree off true north [the Second Pyramid of Giza exhibits a consistent accuracy of alignment which is also extremely impressive: just 6 arc minutes from true north]. By comparison, the Paris Observatory is 6 minutes of one degree off true north." (http://www.ancientx.com/nm/anmviewer.asp?a=76&z=1)
The accuracy of the alignment with which the pyramids were built is more precise than modern skyscrapers. We currently use surveyors equipment, lasers and even GPS to align our skyscrapers. Now we do have the technology to align them even more precisely, but why? It would just add greatly to the expense. This proves that the Pyramids were built with high technology.
1. So then where did these people thousands of years ago get the high technology to build these massive structures so precisely?
2. Why was it important to be this precise?
3. What happened to the technology afterwards, where did it disappear to?
4. What was the purpose of these massive stone structures that were built with such a high level of precision and accuracy? (Even to this day there is no evidence that the Great pyramid was a tomb. Even if it was plundered how could they have swept it so clean? Surely there would have been broken shards, and other evidence of a tomb.)