A polyhedron is a three dimensional object made up of a set of polygons, joined at their edges.
Different types of polyhedra are:
- Platonic solids (All faces are regular, identical polygons)
 - Archimedean solids, semi-regular, also called quasi-regular or uniform (All faces are regular, but not identical polygons. All identical vertices.)
 - Johnson solids (All faces are regular polygons.)
 - Catalan solids, the duals of the Archimedean solids
 - Prisms and antiprisms
 - Regular stellated (star) polyhedra (All faces are regular, nonconvex polygons. All faces are stellated polygons, pentagram, hexagram, etc.)
 - Uniform stellated polyhedra
 - Goldberg polyhedra (A convex polyhedron made from hexagons and pentagons.)
 - Irregular stellated polyhedra (Faces or vertices need not be identical)