Those way-beyond-Earth-tech pyramids, columns, boxes ("sarcophagi") you see shaped in impossible ways weren't done by humans.
That was the angels on Earth before Lucifer pulled the trigger on the rebellion against God.
Those statues you see in Egypt of the jackal-headed dudes and all that? They are life-sized statues, or near-life size, and actual, accurate representations of some of the angelic species. Same with Easter Island. They had technology far ahead of ours. They WERE the servants of God, after all.
But, then they turned on God, and the stuff (I suspect cosmic-grade weaponry) that the pyramids and all were was blasted in the war. Notice how the pyramids seem to have blown their covering stones off? Notice how some of the rock has been surface-melted?
It was a war that killed all life on the face of planet Earth in minutes or hours. Sun extinguished, light was banished, cold on a level never seen descended on the planet, along with gross, deep, darkness. This was the pre-flood cataclysm that resulted in the ocean beds being on mountaintops, and mastadons being frozen, literally, right in their tracks, green food still in their bellies.
Massive, annihilating heat, followed by deep freeze.
Anyway, the architects of Machu Picchu, they pyramids, all the ancient wonders we can't explain was the angels before they went bad. Look at the descriptions of some of the good angels in the book of Revelation. Multi-faced, multi-eyed, like eagles, bears, etc.
They had technology, that like ours, looked simple but was fascinating in its advancement. I mean, whoever thought polishing and mirroring one end of a ruby rod (Not Ruby Rhod) and partially-mirroring the other end, then shining a light on the rod would produce laser light being emitted?
Those pyramids on all the continents had to be shaped like that for a specific, purpose, and I am guessing it was weaponry on a scale we have never imagined. Possibly, linking multiple sites worldwide, to form some kind of heaven-smashing beam.
When Satan said "I will be like the most high. I will exalt my throne above the stars." He was all armed and ready. However, you don't defeat God with ANYTHING. He is immortal, untouchable by sin or death. (note: eternal and immortal are not the same thing)
Later, after Genesis 1:2, God re-kick-started the universe around the Earth. Sun, moon, stars, were all created, and light, heat, and life returned to the Earth which had become "without form and void" as a result of Angel War I.