Did the Egyptians create a canal and a port to bring stone to the Great Pyramid? - The Boston Globe
A Ramp Contraption May Have Been Used to Build Egypt's Great Pyramid - Scientific American
How long did it take to build the Great Pyramid? - HISTORY
Egyptian civilization - Architecture - Pyramid construction
More Evidence Slaves Didn't Build Pyramids - CBS News
Egyptian Pyramids Built with Ramps, Not Alien Technology | HowStuffWorks
Great Pyramid of Giza - Wikipedia
How long did it take to build a pyramid? It took about twenty years minimum for each of the Egyptian pyramids to be built. The great pyramid in Giza. - ppt download