This 45 minutes presentation explains the added value of putting images, stories and metadata of digitised collection highlights of the KB, national library of the Netherlands, into the Wikimedia infrastructure. By putting our collection highlights into Wikidata (metadata), Wikimedia Commons (images) and Wikipedia (stories), dozens of new functionalities have been added. As a result of 'Wikifying' these collection objects, you can do things with these highlights that were not possible before. It is based on the 5 articles of the series 50 cool new things you can now do with KB’s collection highlights Outline: KB's collection highlights (medieval manuscripts, historical atlases, alba amicorum, flora & fauna books) , part of our national heritage Presentation of our collection highlights via KB websites Explainer: Wikipedia and other Wikimedia projects : Wikidata and Wikimedia Commons Why Wikipedia is so useful – Case 1 --> Visitor stats of kb.nl vs. Wikipedia --> Institutional websites have limited ...