Spiral Pattern in Pine Cone Pine cones are a classic example of the logarithmic or equiangular spiral in nature. This is from a Short-leaf pine. These spirals form from processes where there is turning at a constant angle but accelerating growth.
Possibly with regular doors instead making use of space between walls.How clever to have CD and DVD storage in the walls of the stairs via Home Beautiful. Something similar but with chair railing so it's accessible for up and down stairs