First and foremost, there is no evidence from any other British Neolithic site of megaliths being moved such vast distances. In fact, the builders of other monuments consistently used whatever large stones were locally available.
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Yeah, somehow humans were stupider than they are now. /s
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Notable Examples
Avebury (England): A UNESCO World Heritage site, Avebury is one of the largest stone circles in Europe, with a village built within its boundaries.
Castlerigg (England): One of the earliest British stone circles, Castlerigg is situated in the Lake District and boasts stunning scenery, with the dramatic Thirlmere Valley and Helvellyn mountain as its backdrop.
Long Meg and Her Daughters (England): Consisting of 59 stones, this is one of the largest stone circles in Europe, with megalithic art symbols and possible sundial functions.
Regional Variations
While the majority of stone circles are found in the British Isles and Brittany, there are also examples in other parts of Europe, such as:
Poland and Hungary, attributed to eastward migration of European tribes
The French Alps, where locals refer to them as “mairu-baratz” or “Pagan gardens”
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List of stone circles:
https://en.wikipedia.org/wiki/List_of_stone_circles
If humans hauled enough large stones great distances to create Stonehenge then it’s completely reasonable to believe that humans could have hauled one more unrelated stone.
Partial list ... there are stone circles in Africa, Korea and other countries