Ballynoe Stone Circle
I had no idea until last year that there was a stone circle in Northern Ireland. Not far (3 miles) from Downpatrick in County Down.
https://en.wikipedia.org/wiki/Ballynoe_stone_circle
I recently took my little pal there. The lane up to it has been decorated with little fairy paraphernalia which he loved.
A lovely place to visit, somewhat magical and mystical.