To counteract the apparent distortions of perspective in the parthenon, the architects who designed it actually created a( a0 illusion.

They created an Optical Illusion.

The way we see object in a specific area differs significantly depending on our distance and point of view when we see it.

To counteract it ( for example if they want the building to look nice in the picture), many architects create an optical Illusion and it will negate the effect of the distorsion

Ci think because glucose comes from trees