Image of Barclodiad-y-Gawres (Chambered Cairn) by Dunstan

Whether by accident or design, the passage at Barclodiad-y-Gawres is aligned on these two hills. They don’t look very spectacular, but go there on a clear day and you’ll see that not only does the passage point towards them, but that they stand out against the flat and level horizon.

Image credit: Dunstan