Other than the incomparable Pen Pumlumon Fawr:
https://www.themodernantiquarian.com/site/4168/pen_pumlumonfawr.html

since I've been there before ...the 'place' would have to be Skye's other Hag's Hill:
https://www.themodernantiquarian.com/site/6282/beinn_na_caillich.html

The archaeology, this utterly obscure gem in the wilds of Mid Wales:
https://www.themodernantiquarian.com/site/19439/bwlch_graigfawr_teifi_pools.html