I believe the Pantheon dome was, not sure about the Parthenon though. But it's definitely very old. A lot older than some people realise I think. But yes, not d

I believe the Pantheon dome was, not sure about the Parthenon though. But it's definitely very old. A lot older than some people realise I think. But yes, not disagreeing that it can be beautiful. I've seen many beautiful concrete sculptures, but I don't think it's the first thing that springs to mind for many.