Scientists Discovered a Prehistoric Structure That Was Impossible for Humans to Create!

The past has left us with gigantic puzzles. And this is meant quite literally: in the distant past, our ancestors created colossal monumental buildings that inevitably raise the question - how was this even possible? How did people thousands of years ago manage to carve stone giants out of the ground that even our most modern construction machines would have despaired of? Could it be that the peoples of antiquity had more than the simple means and tools that are commonly attributed to them? Some alternative minds take these questions even further: was it perhaps not the people who built the pyramids and the like?