These might not look like much, but they're the oldest man-made things I''ve featured so far. They're cup and ring marks carved into rocks on the hills around Cochno on the outskirts of Glasgow. Dating from the Neolithic period between four and six thousand years ago, similar petroglyphs can be along the Celtic fringe of Europe. However, it's not known why they were made.

#glasgow #archaeology #scottishhistory #cupandringmarks #faifley #neolithic #petroglyphs