via Information Aesthetics
Out of the chaos comes a beautiful, sometimes undefinable order. Number Spiral is a website that documents and illustrates the concept of the same name: "A ribbon with non-negative integers placed along a ribbon which is rolled up with zero at its center. When all the prime numbers are highlighted, specific visual patterns (odd curves) seem to emerge."
I really wish I would have learned more math in my younger years. Though, it's never too late to learn. Anyon have any good introductory book suggestions?