The beautiful fractal shapes of this green fern struck my eye immediately. We all know that ferns are fractals, and that fractals are cool. So instead, I'll tell you about other things that we often forget (or don't know) are fractals: rivers, mountains, turbulent flames, lightning, lettuce, clouds, broccoli, (some) seashells, and shorelines. The list could go on forever, depending on how much detail you want (and is therefore itself a fractal!).