The RETOLD project will ensure that open-air museums can continue telling important cultural heritage stories to a diverse public by developing a standardised workflow to collect, digitise, and share data on buildings, crafts, and traditions. These data will be stored in an open access format so that museum professionals, researchers, and the public can access and use them freely. This will ensure better quality research through more comparable data, the preservation of tacit cultural heritage knowledge, and opportunities for more engaging and impactful story-telling about cultural heritage to the general public.