Rabbit holes
Da Vinci
Divine proportion
Dodecahedron
Dymaxion
Euclid
Golden mean
Hexagon
Icosahedron
Icosidodecahedron
Making a lamp
Motivation
Octagon
Pentagon
Pacioli
Paper
Plato
Rhombicosido-
decahedron
Rhombicub-
octahedron
Symmetry
Truncation
Wood
Zometool
The dodecahedron – 4
Leonardo's perspective
From the book De Divina Proportione (The Divine Proportion) by Luca Pacioli, Biblioteca Ambrosiana, Milano, 1982 (1509).