A hypercube
At the Festival of Science of Genoa (2006) a comparison between a net of the cube and a net of the hypercube, a Schlegel diagram of the cube and one of the hypercube.
© matematita
The image belongs to the sections...:
Schlegel diagram of a hypercube (4D geometry)
Suggestions about 4d from 3d-world (4D geometry)
Net of a hypercube (4D geometry)