A previously unknown stone circle has been uncovered close to a Cornish town. The discovery took place as archaeological surveys of Castilly Henge, near Bodmin, have been carried out as part of a project to conserve and better understand the site.New research by Historic England and the Cornwall Archaeology Unit (CAU) revealed a previously unknown stone circle inside the ancient henge. The sheer scale of it can be seen in pictures shared by Historic England in this article.The site has now been fenced, allowing it to be grazed by animals without damaging the structure at the site which is one...