This entry was published at least two years ago (originally posted on June 25, 2003). Since that time the information may have become outdated or my beliefs may have changed (in general, assume a more open and liberal current viewpoint). A fuller disclaimer is available.
The Vatican has put their artwork collections online at Vatican Museums. I haven’t taken the time to dive through it extensively yet, but it looks to be a fascinating site.
(via MeFi)