When you're done checking out our cultural past in the museums, stop by Westboro and take a look at what local Mass. artists are doing. It's a gallery, so they are kind of looking to sell, but they don't seem to mind too much if you look around even if you don't really look like you're going to be buying anything. In any case, they have some good stuff, and are always showcasing someone new when I stop by, so check it out. If you are looking to buy, prices start around $10 for tiny prints and get up into the thousands for the really nice stuff.