A Sierpinski pyramid standing on its peak. The main light source position is set like this, to offer a Sierpinski triangle-like shadow, that is cursed by the pyramid. This shows, that these both structures have something in common. If you use special properties of a higher dimensional fractal, you can find out its lower dimensional origin. This might work with the shadow of the fractal (like here) oder with a proper cut through the fractal (e.g. the Mandelbulb). Created with mandelbulber2. The surface area of the pyramid that is parallel to the bottom, is a Sierpinski triangle. The main light is behind and over the viewer. The interesting part of the image is the context of the Sierpinski triangle (2D) an its threedimensional equivalent shown in one image (with explaination). The "other versions" show more visualizations (and special properties) and more visual information (like symmetry).
<a href="//commons.wikimedia.org/wiki/User:PantheraLeo1359531" title="User:PantheraLeo1359531">PantheraLeo1359531</a>
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<span class="int-own-work" lang="en">Own work</span>