Great spinoprismatodishecatonicosachoron

The great spinoprismatodishecatonicosachoron, or gnappady, is a nonconvex uniform polychoron that consists of 120 great rhombidodecahedra, 120 great stellated dodecahedra, and 720 pentagrammic prisms. Three great rhombidodecahedra, one great stellated dodecahedron, and three pentagrammic prisms join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great hexacosihecatonicosihecatonicosachoron.