I have yet to read two of your 'must read' list, including #1. Bad me.

I like your ways to spend evenings.

I have been to Brittany but have not seen the dolmens. However, I have been to Vendée and seen a couple of dolmens and some menhirs, one of which I drove past about five times and walked past twice before I realised that the reason I couldn't see it was that it was about three foot tall and almost hidden behind a small sapling.