The Cleveland Museum of Art made 30,000 works from its collection free to download and remix.

Artsy,
28 January 2019, USA

The Cleveland Museum of Art (CMA) has made images of some 30,000 works from its permanent collection that are in the public domain open access, meaning that anyone may download, share, reproduce, remix, or otherwise transform the images for scholarly, commercial, and noncommercial uses.

https://www.artsy.net/news/artsy-editorial-cleveland-museum-art-made-30-000-works-collection-free-download-remix