There is a special charm in the towns of the Val d'Orcia, a harmony that encompasses everything and spreads among the alleyways, squares and the surrounding views. One of these places, in particular, recalls an ideal of beauty based on proportions, on space and perspective: it is Pienza, the small town built thanks to a man who was a humanist and a Pope.

Enea Silvio Piccolomini, elected with the name of Pius II, had the idea to create a utopia: giving birth to the ideal city. The characteristics that it would have were based on a humanist-renaissance concept, as well as on the will to see nature and history co-exist through the harmony of perfect shapes. The urban planning that ensued made the dream of the Pope come true.
The  central square, entitled  to Pius II and today still the soul of the town, is the core that pushed the small urban planning revolution that took place here, on the design of Rossellino: in the shape of a trapezium and based on the proportions that make it "wider" than its actual size, the square is surrounded by the most important buildings of Pienza, such as Palazzo Borgia and Palazzo Piccolomini, which face one another and today are two museums  that contain treasures and art items among the most important of the Val d'Orcia.