Portraits of two of his sons on a stair case (Staircase Group) (Portrait of Raphaelle Peale and Titian Ramsay Peale) Charles Willson Peale (1795)Click to Enlarge
Charles Willson Peale painted this life-sized trompe l'oeil "deception" (it was 89-1/2 x 39-3/8 inches.) It's said this painting fooled George Washington, who tipped his hat to the "boys" when he entered the room.
This painting is more deceptive with its fake door molding and
real wooden step, which matches the steps in the painting.