15 Parts

[Jolly]

https://historylists.org/architecture/15-defining-parts-of-a-castle.html

[taiwan_girl]

Very cool article. Thanks for sharing.

The thing with stair steps is neat. Simple but effective. Every so often, put in a step that is 1/2 height or 2x height. The human body is amazing in how it is able to anticipate the height of a step. A step can be off by just a little bit, and it throws me off.