a dome in the Hypno Ray level. Some Geodomes in which people play on are Pentakis Dodecahedra. References (Section 3-9) (The thirteen semiregular convex polyhedra and their duals, Page 18, Pentakisdodecahedron) The Symmetries of Things 2008, John H. Conway, Heidi Burgiel, Chaim Goodman-Strass, (Chapter 21, Naming the Archimedean and Catalan polyhedra and tilings, page 284, Pentakis dodecahedron ) External links Pentakis Dodecahedron – Interactive Polyhedron Model Catalan solids Geodesic polyhedra