Raphael Rooms
Between 1509 and 1511, Raphael also completed another work on the wall opposite the "Disputa". This third painting, entitled "The School of Athens", represents the degrees of knowledge or the truth acquired through reason. The fresco's position as well as the philosophers' walk in direction of the Holy Sacrament on the opposite wall suggested the interpretation of the whole room as the movement from the classical philosophy to the true religion and from the pre-Christian world to Christianity. It was meant to reside over the philosophical section of Pope Julius II's library. It is perhaps Raphael's most famous fresco.
Hexadecagon
In the early 16th century, Raphael was the first to construct a perspective image of a regular hexadecagon: the tower in his painting "The Marriage of the Virgin" has 16 sides, elaborating on an eight-sided tower in a previous painting by Pietro Perugino.
Hexadecagrams (16-sided star polygons) are included in the Girih patterns in the Alhambra.