Trompe l'oeil is french for "trick the eye". It is an art technique where an optical illusion is created. A two dimensional art work appears three dimensional.
These cabinets were real, in that the doors were real; they could actually be opened. But, the inside was completely flat. The client wanted it to appear that there was china and stemware inside of them.
~ One cabinet, with door closed ~
~ Door open - displaying artwork inside ~
~ The other cabinet ~