Isle of Arran; Machrie Stone Circle

The standing stone circles at Machrie on the Isle of Arran, are ancient structures that may be related to local burial pits and other circles.

One of the most striking remains of a stone circle has tall sandstone slabs, which are of interest to me as a huge nerd, because they're made of sandstone and feature sedimentary structures including cross bedding, channel deposits and honeycomb weathering.