I watched 'Ancient Aliens' on History on Sunday evening with an open mind.
They mentioned a place in South America where the rocks at an ancient site fit together like a Jigsaw puzzle.....so perfectly.
They said perhaps the rocks were melted at 3000 degrees and moulded into shape.
But they said the technology for reaching such high temperatures wasn't available at that time (don't know how old the site was).
So they concluded that ancient aliens must have provided the technology!
How hard is this for someone in the know to disprove?
Silver