Pyramids, designed by Sebastian Kirsch

- This model was designed by Sebastian Kirsch; the rendition in the photograph was folded by Sebastian Kirsch. -

folded from an equilateral triangle and a hexagon.

I have seen these pyramids made from a square by Maarten van Gelder and by Vincent Floderer; I merely realized that they can be made from other paper formats as well.

I've also tried to make a pentagonal pyramid with 17 steps, but unfortunately, it turned out to be too much for me.