Bafflingly advanced ancient stonework: how the heck did they cut it? (video lecture)

In some strange ruins, advanced tool marks have been left behind which show precision surfaces as if they were carved and shaped using modern machinery.

Also, the vast distances that these monuments, some weighing several hundred tons, were moved from the quarries is a mystery.

How could the ancients shape hard stones like basalt, granite, and diorite? Ancient Peru, Bolivia, Egypt, Petra, and even Easter Island contain enigmas and mysteries, especially in the stone, which most conventional scholarship can`t explain.

Some of these places seem to have been constructed using what we would call high-level machine technology.

So, could an unknown advanced civilization have existed before those that are known?