Kepler–Poinsot polyhedron
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In geometry, a Kepler–Poinsot polyhedron is any of four regular star polyhedra.
Marble floor mosaic Basilica of St Mark Vencice
Perspectiva Corporum Regularium 22c
Perspectiva Corporum Regularium MET DP239933, great stellated dodecahedron
Stellated dodecahedra Harmonices Mundi
Regular icosahedron
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The regular icosahedron is a convex polyhedron that can be constructed from a pentagonal antiprism by attaching two pentagonal pyramids with regular faces to each of its pentagonal faces, or by puttin
A twenty-sided die from Ptolemaic Egypt, inscribed with Greek letters on the faces
The Scattergories twenty-sided die, excluding the six letters Q, U, V, X, Y, and Z
The radiolarian Circogonia icosahedra