An ancient pyramid in Mexico has collapsed into a pile of rubble and people think it’s a 'bad omen'. The stone pyramid in the state of Michoacán became one of many heritage sites to be put in danger ...

This pyramid has a square base and four equilateral triangles on the sides. For further information about Berman's models of regular-faced convex polyhedra, see 1978.1065.01. Location Currently not on ...

Location Currently not on view Credit Line Gift of Martin Berman date made 1970 ID Number 1978.1065.028 accession number 1978.1065 catalog number 1978.1065.028 Object Name geometric model Physical ...