The American Mathematical Society (AMS) has a new site dedicated to the connection between mathematics and art, specifically dealing with mathematical imagery. As expected, much of the site is dedicated to the Dutch artist, M.C. Escher who created amazing works of art through the use of mathematics. You will find links to galleries, museums, articles and other resources.
Interestingly the quote on the front page of the site is by G.H. Hardy, from his book, A Mathematician’s Apology, which I recently read for the first time and review here.
A mathematician, like a painter or poet, is a maker of patterns. If his patterns are more permanent that their, it is because they are made with ideas.
I find that an interesting reference to the abstractness of mathematics, whereas the site is dedicated to a concrete visualization of the abstractness. The beauty of mathematics is in its nature to be independent of application and context. Nevertheless, bringing those patterns into the visual can create some stunning graphics.