Great penteractipenteractitriacontaditeron

The great penteractipenteractitriacontaditeron, or ginnont, is a nonconvex uniform polyteron. It has 10, 10 tesseracts, and 32 as facets. 4 great tesseractitesseractihexadecachora, 1 tesseract, and 1 pentachoron join at each vertex.