First I tried in card, two different structures, but really wasn't happy with how they were going, see earlier posts in Buildings, so I gave up.
Then I found a thin plastic ball which had had leaves glued to it, a pot pouri thing that "she who must not be named" had bought, So I removed the leaves and cut it in half. Then I glued it to the top of the structure I had cut from Cappa board.
To finish I covered most of the structure with a concrete mix I like, wood glue with sand added and mixed up like gobo. Smear it on and let it dry. Rock hard when it sets off, then I painted the whole thing.
This the full set up, the sort of temple you might get in a city.
A temple suitable for a town, I have just removed the base ruin.
This could be a small temple or wayshrine attached to a village.
Next I will be making some furniture pieces to go inside and outside the structure.