Hexahedron
A hexahedron has 6 square faces, 12 edges and 8 vertices.
This image of a hexahedron was created by
Tom Gettys
using the program
Persistence of Vision.
See also
Transparent Hexahedron,
Tetrahedron,
Octahedron,
Dodecahedron,
Icosahedron,
Platonic Solid