Why did the Romans really kill Jesus? (I mean, if we had an account of the trial and crucifixion written from the Roman point of view, what would it say?)

And what was in all those books that were burned in the library of Alexandria? And was the burning really an accident?

Why were the pyramids built? (Sure, they look like tombs, but there's no proof anybody was ever buried in them.) Why did the Egyptians quit building pyramids?

Who originally sculpted the Great Sphinx, and what did it look like? (It has evidently been re-sculpted at some time, since the head is now obviously too small for the body.)