Jon Rohan · Creating Triangles in CSS
http://www.dinnermint.org/css/creating-triangles-in-css
"I’ve come across a few techniques and tips in my career, while working at my last gig a co-worker pointed me to this technique. I believe this was originally discovered by the legendary Eric Meyer, but I couldn’t find much documentation about it on the web so I thought I would describe it here."
Rhombicosidodecahedron - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Rhombicosidodecahedron
"The rhombicosidodecahedron is an Archimedean solid. It has 20 regular triangular faces, 30 regular square faces, 12 regular pentagonal faces, 60 vertices and 120 edges."