If you don't know about it already, I'm sure you'll hear about it soon from some sort of media outlet. The Google Team have put together an excellent resource that allows you to visit far off art galleries from the comfort of your own home. You can be in Austria walking around an art gallery and then 10 minutes later be in the Louvre in France.
What is cool is that you can actually walk around the museum and go up to the paintings for a closer look. In fact if you zoom right in you can even check out the brush strokes. Trying getting that close in a gallery without being told off from a security guard! Even better is the fact that you can find out the history behind the painting with just a click. It's kind of like having your personal guide. If you haven't had a play on it yet here is the link and go and try it. www.googleartproject.com I warn you though it is a bit addictive and can easily eat up a bunch of your free time.