Based on standing stones found around Scotland like the The Callanish Stones, and the Circle of Brodgar. The designs are cup and ring marks that are found carved into bedrock and stones all around the world. Some of the most famous ones in Scotland are found at Kilmartin Glen
No one knows for sure why standing stones were erected, and no one knows why cup and ring marks were carved. They are mysteries with answers lost to time. The stones hold their stories.