View and spin any of the 80 uniform polyhedra, beautiful mathematical objects with high degrees of symmetry. Uniform polyhedra include the Platonic solids (tetrahedron, cube, octahedron, icosahedron and dodecahedron) plus other solids where the faces are regular polygons (see http://en.wikipedia.org/wiki/Uniform_polyhedron). Each polyhedron has a dual, where faces and vertices are interchanged, and a button lets you flip between each solid and its dual. Information about each polyhedron is available using the (i) button at the top right.