The National Gallery of Art on Wikimedia Commons and Wikidata | USA

"The National Gallery of Art has long been committed to making its art freely available to the world through its open-access initiatives. In 2018, the Gallery began extending this commitment by working with the Wikimedia Foundation, one of the largest supporters of open knowledge and culture, to donate its collection of open-access images and data to Wikimedia platforms to support open culture, research, and education. To date, the Gallery has contributed 53,000 high-resolution images of artworks to Wikimedia Commons and 120,000 art object collection records to Wikidata. Every image and collection record on Wikimedia Commons and Wikidata is available under a Creative Commons 0 (CC0) license. A CC0 license means that the image or records are freely available to use without restriction – no need to ask for permission – and for any purpose...."