Italian designer Alessandro Di Prisco created this funky geometric looking piece of furniture "Cubico" that has more than one function depending on how it is positioned! 
"Its design is produced by the subtractive process, progressively removing material from an accomplished figure, the cube, getting some voids, fissures in its linearity...It can certainly be a magazine rack, a coffee table, a stool or why not just a cube!

Basic and functional is it not?

[Images via Freshome]