I have been told that there are similar circles in many, many parts of Europe. And even in other parts of the world.
Yes. As detailed on more than one Ancient Aliens episode including the observation that the cliche Druids were latecomers using ancient sites already there for thousands of years before they arrived. 1st century for Druids.
This website is about preserving historic places in England:
https://www.cpre.org.uk/discover/seven-stone-circles-that-arent-stonehenge/
and Ancient Aliens, Season 18, Episode 2 about standing stones around the world, built at great cost and use of manpower over decades of effort——but why do that?
“It is one of the greatest mysteries of the prehistoric world: why did people on nearly every continent erect giant standing stones?”
Libya & Algeria all have megalithic structures some are upright Ts and others are circles - never investigated in modern times - perhaps because it has become far too dangerous