Suggestions for the Museum of Math

At long last, I finally got around to visiting the Museum of Math in Manhattan. I have a few suggestions for exhibits:

1. Zooms of the Mandelbrot set.
2. Self-inverse fractals
3. Escher's Circle limits
4. The Life cellular automaton
5. Green sticks in the Zometools exhibit (those make a regular octahedron possible)
6. Four-dimensional geometry
7. Surreal numbers
8. Last, but not least, countable ordinals