Chicago is here!
With 59,734 data sets, the next image database in prometheus is integrated thanks to a public API. The Art Institute of Chicago offers free and unrestricted use of images of works from its collection that are presumably in the public domain or for which the museum has otherwise waived all copyrights. On its website, the museum describes what this use can look like using the example of cat images for social media platforms.
With this new image database, we are just short of the 4 million images in prometheus. A milestone that we will reach next year. :-)
