Another great bit of ancient graffiti are runes carved by some Vikings sheltering inside the ~4800 year old tomb of Maeshowe on Orkney:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Maeshowe" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Maeshowe</a><p><i>&quot;He is a viking...come here under the barrow&quot;</i><p><a href="http:&#x2F;&#x2F;www.orkneyjar.com&#x2F;history&#x2F;maeshowe&#x2F;maeshrunes.htm" rel="nofollow">http:&#x2F;&#x2F;www.orkneyjar.com&#x2F;history&#x2F;maeshowe&#x2F;maeshrunes.htm</a>