Parthenon's Proportions - The Golden Section

The mathematical method of the Golden Section is one of the most important principle that has been implemented with the ground plan and the elevation based on its columns.

This creates a symmetry through out its arrangement of the columns which create a proportional and geometrical planning. 

Reference list:

Elam, K. (2001). Geometry of design: Studies in proportion and composition, Princeton Architectural Press.

McKeague, P. [MathTV]. (2008). Sequences 5: Golden Rectangles [Video]. Youtube. https://youtu.be/-ncEEXekZek