6X6X6 & UP
The first mass produced 6x6x6. A six layered cube.
The first 7x7x7. A seven layered cube.
CUBE (SHAPE CHANGING)
The face turning dodecahedron with two layers per face. A Megaminx with an additional layer on each face.
Meffert's six colour 1982 version. Roughly 31 mm along an edge.
SIAMESE & FUSED