Once again I've been beaten to the punch by Stamen, infosthetics, Geraldine, Esquire and more. But here it is for posterity: we released SFMOMA ArtScope a couple of weeks ago. This was a fun one, we're really pleased with the lens approach (rather than continuous zooming) and we're loving the serendipitous bouncing from piece to piece when you search.
Inside info: the artwork is arranged by acquisition date, earliest acquisitions are top left and latest are bottom right.
This site used to be a blog, a sketchbook, a portfolio. Time has not been kind to this site.