U.S. National Gallery of Art hosts more than 25,000 images of famous and not-so-famous works of art. Nearly all of the images can be downloaded and re-used for free. NGA Images also allows you to register and create online collections of images. The collections are called lightboxes.
When you find an image in NGA Images click on the magnifying glass icon to enlarge it and learn more about it. Clicking the magnifying glass icon launches a pop-up box that contains an enlargement of the image, information about the artist who created the artwork, and an option to search for related images.
Applications for Education
Using the related images search option in NGA Images could be a good way for students to discover lesser-known artists who produced art similar to that of their more famous contemporaries. Of course, being able to download the images means that your students could use them in slide presentations and videos about artists and styles of art.
H/T to Open Culture.