Picture of the month
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/29/Sierpinski_pyramid.jpg/360px-Sierpinski_pyramid.jpg)
Credit: Solkoll
The Sierpiński pyramid is a higher dimension analog of the Sierpiński triangle. It is a fractal formed by repeatedly shrinking a regular pyramid to one half its original height, putting together five copies of this pyramid with corners touching, and then repeating the process. The Sierpiński pyramid has infinite surface area but zero volume.
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