The slightly weird Hill o' Many Stanes in Caithness. It's a hill, with many stones. But why? It is generally believed to have been erected some 4,000 years ago, but no real dating evidence has been found. More pics and info: https://www.undiscoveredscotland.co.uk/lybster/manystanes/index.html #Scotland #HillOManyStanes #Caithness