Some Egyptologists and Atheists claim that the pyramids were built in a time before the Biblical flood of Noah was suppose to occur. So are the pyramids proof that the Bible is inaccurate? This video investigates this claim and refutes it.
In making the case about the pyramids, the video draws upon interesting information on genealogy and textual differences between the Hebrew Masoretic text and the Greek Septuagint.
Here is an opposing view regarding the date of the pyramids. This video is very interesting, although I missed a whole section in the middle as I fell asleep, the beginning and end were pretty thought provoking. Enjoy.
ANCIENT EGYPT DOCUMENTARY ON PYRAMIDS OF GIZA AND THEIR HIDDEN SECRETS
It is not about Aliens either, so the picture in the video is rather puzzling.