Michelangelo, Raffaello, Leonardo... and then again Leonardo, Galileo, and many more famed artists and scientists: there is no doubt that Firenze – the Renaissance City – has been for centuries the real keystone of both Western art and modern science. In fact, it appears that some of the leading figures of the city’s art scene were also very well-versed in subjects as diverse as geometry, mathematics, astronomy, and anatomy, among others.

In spite of this well-known fact, though, the intersection between architecture and mathematical proportions which plays such a crucial role in making Florence’s churches and palaces look so perfect is still often overlooked. Let’s take a walk through the “city of art and science,”  stop in front of its main sights and look more closely at their façades in search of Firenze’s sacred geometry: a “secret geometry” as well, after all.