I found this website to be very fun:

http://gizapyramid.com/research.htm

I have only browsed it briefly but there are so many rad articles, I have to share it.

I work in construction, and work with engineers and surveyors pretty often. Usually, they have no idea how complex and perfect that pyramid is. But once I tell them even a few details, they always agree that there is no possible way that we could build that pyramid with modern technology. We couldn't even come close.