Thousands of free images of Byzantine art from the Met Museum
From NY Times: All images of public-domain artworks in the Metropolitan Museum of Art’s collection — about 375,000 — are now free for anyone to use however they may please.The museum announced on Tuesday that it had changed its open access policy to allow free, unrestricted use of any images of artworks in the public domain, using the license designation Creative Commons Zero, known as CC0. Click here to access the collection