Looks like someone solved the storage system used by Google Art Project and extracted all of the *extraordinary high res Getty images* stored therein. They're all currently located in Wikimedia Commons (where they're likely to stay forever, given WMF's strong position on the public domain), and may be paged through in the gallery or simply downloaded in bulk. They appear to be listed out of order, probably due to the GAP influence, but being an authorized File Mover on the Commons I'll see about correcting that at some point this week.
http://commons.wikimedia.org/wiki/Categ ... DWIG_XV_13