Do you believe in miracles? Who could have drawn Nazca Lines on ground in Peru several centuries ago, which can only be viewed from Air? How Stonehenge was created? (The weight of each slab of stone is several hundred tonnes, and even the modern cranes would groan under its weight.) Who and why the statues of Easter Islands were created?
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These that you have described are not miracles but men's greatest feats during a period which we consider primitive. Look at the Peru mountain top city of Macho Picho, we wonder how they could have moved all the material and what was the human cost in achieving it OR the Easter Islands Statues ringing the whole island, by a people who otherwise were more or less cut off the main land of Chile or for that matter even the Madurai Meenakshi temple, where they haver geometrically aligned those huge stone slabs to such great heights. They did it and that is the wonder they espouse