I just created a proposal page to tag citadels: Proposed features/Citadel - OpenStreetMap Wiki
The proposed tag is
I’m sending this also to the tagging mailing list, but I prefer to discuss the proposal here and on the discussion page on the Wiki.
1 post - 1 participant
Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/rfc-proposal-to-tag-citadels/3570