Media/Art

The first example is about paintings. Muller-Lyer illusion is actually everywhere in art pieces. Though artists rarely create specifically using Muller-Lyer illusion, basically all paintings concerning 3D spaces are related to Muller-Lyer illusion. Paintings are just a plat 2 dimensional presentation, but because artists paint objects with different sizes and have different cues indicate their different distance from us, our brains are "fooled" by those Muller-Lyer illusion tricks used by artists and incorrectly perceive paintings as a 3 dimensional space.

The second example is in architecture. We can see in architects' design drawings they use outward and inward arrows to present lines in different distances. As we can see, in the following picture the two lines are drawn to create a sense of 3 dimensional space.