Sources for free images: * [British Museum online collection](https://www.britishmuseum.org/research/collection_online/search.aspx) – CC BY-NC-SA 4.0 * [Images d'Art](https://art.rmngp.fr/fr/library/artworks?keywords=jeu) – [free for non-commercial use](https://art.rmngp.fr/en/legal-notices-and-general-terms-and-conditions-of-use-of-the-images-d-art-website) * [National Museum of Australia](http://collectionsearch.nma.gov.au/) – CC BY-SA 4.0 * [Te Papa/Museum of New Zealand](https://collections.tepapa.govt.nz/) – CC BY-NC-ND 4.0 or no copyright restrictions * [Met Museum](https://www.metmuseum.org/art/collection/search) – many public domain * [MFA Boston](https://collections.mfa.org/) – many public domain * [Portland Museum](http://collections.portlandmuseum.org/) – public domain * [USC Digital Library](https://digitallibrary.usc.edu/) – many public domain or otherwise liberal, depending on source Free stock images: - [Unsplash](https://unsplash.com) - [Pexels](https://www.pexels.com) - [Pixabay](https://pixabay.com) No longer free: * [Strong Museum of Play](https://www.museumofplay.org) used to have all their 70k+ images available under a CC license but the images are now [hosted by Google Arts & Culture](https://artsandculture.google.com/partner/the-strong) and have no license information (nor can they be downloaded)
Sources for free images:
Free stock images:
No longer free: