Victor Quiñonez will debut his sculpture series 'I.C.E. Scream,' about immigrants' struggles, during this year's Frieze.

But what about when you come across new ones, like a Tetris-shaped road sign? Before we get into exactly what the Tetris road ...

Through works embodying the sun, the moon and the rainbow, Rondinone continues his poetic investigation into how these elemental symbols shape our collective consciousness and personal experiences.