Rings

Thinking of rings for this Tuesday's Guardian in pictures challenge (not that I have much chance after this weeks success). But only had time for tree rings. I'm avoiding wedding rings (cliche). Found some old pics of rings of people (cologne and London), a yurt ceiling ring, a ring of lights round a pole in London, hmm....of course this is all to avoid writing the review I have to get done and the grant I have to read and review.