Scotland's Mysterious Petroglyphs Are About to Become Visible Again

Created by people living 5,000 years ago in Scotland, the Cochno Stone is a beautiful example of ancient European "cup and ring" carving. These are created by making grooves and indentations in the rock, creating vast, swirling patterns that may have guided rivulets of liquid during ceremonies. » 7/18/14 4:02pm 7/18/14 4:02pm