PLATONIC GEMS:

Other than cubes there are only four other Platonic solids, including tetrahedra, octohedra, dodecahedra, and icosahedra, which have 4, 8, 12, and 20 identical faces, respectively.  For some, they have mystical properties, but I enjoy their gem-like appearance.  My favorites here are octahedra and dodecahedra.