Smithsonian opens vast image collection to public use…
” The Smithsonian has just opened access to a vast collection of more than 2.8 million images of art and artifacts for public use. Joining The Art Institute of Chicago, the Rijksmuseum in Amsterdam, the Metropolitan Museum of Art in New York, and the New York Public Library, who have made thousands of images publicly available in recent years. Even media company Getty Images made the vast majority of its photo collection available for free. …”

https://www.si.edu/openaccess