"Is that a pimple on her butt? It's hard to imagine why Flemish Renaissance artist Peter Paul Rubens would paint a blemish on the backside of one of the fleshy lovelies meant to represent beauty, charm and good cheer, but there's no denying that single red brushstroke in the midst of his central figure's creamy skin. At least not now that the painter's 1638 masterpiece The Three Graces is available in ultra-high definition on Google Earth."