3,500 items use the property P758, Norwegian Kulturminne ID.
Meanwhile monuments_no_(no) has 16,000 objects.
Aligning these requires:
- Identifying existing monument items on Wikidata that are missing the identifying property, and adding them. That will probably be a lot.
- After making sure all of those have been improved, creating items for the missing monuments, based on the contents in the Monuments database.