This is the local RER underpass in Bourg-la-Reine. It is getting very familiar, as we walk it numerous times a day! It interests me that the stones, while still irregular, can all be made to look five-sided.
This is the local RER underpass in Bourg-la-Reine. It is getting very familiar, as we walk it numerous times a day! It interests me that the stones, while still irregular, can all be made to look five-sided.
