Behind the fences, with the sound of jackhammers, plumes of dust and the waltz of machinery, the construction site is more than just an organized racket. It is a theater of invention, a space for know-how, a place for performance. From the Renaissance to the present day, it is also a reflection of the societies that produce it. From a simple place of production, it has become a field of study, creation and power. Often forgotten in official histories, the construction site is nevertheless omnipresent in our landscapes, our lives and our collective imagination.