A Menger Sponge ist a fractal curve with a surface area approching $\infty$ while the volume approches $0$ for higher order Merger sponges.
This seemed interesting, so I built one out of paper.
- Fold 72 sonobe:
- Insert the individual sonobe together to form the merger sponge:
Next step: Build a $M_2$ merger sponge (left as an exercise for the reader).