Trompe L'oeil Murals

trompe l'oeil |?trômp ?loi| noun ( pl. trompe l'oeils pronunc. same)
visual illusion in art, esp. as used to trick the eye into perceiving a painted detail as a three-dimensional object.

? a painting or design intended to create such an illusion.

ORIGIN French, literally ?deceives the eye.?

Thanks to Harold Naideau for the tip!