Watched an episode of Ancient Aliens on History Channel. O_o
One of the interviewees was going on about how some form of extraterrestrial tech such as "sonic levitation" must have been an agent in the raising of humongous megaliths that are otherwise beyond modern ken as to how they got stacked one upon the other by our long-deceased ancestors.
Only today, apparently, are we just beginning to rediscover the technology that allows us the ability to harness sound waves. Nonsense. We've never lost that technology -- in fact we use it practically every day.
"Hey, you good-for-nothing idle bunch of low-life slackers! I want Block A stacked on Block B by this evening! I don't care how, just get it done... or else [fire and brimstone consequences]!!!"
Nothing to it, really.