When the environmental situation and the characteristics of the building allow it, we can choose one of the most spectacular technologies in the world of demolition: explosives. The operation must be carefully prepared, proceeding with a precise static weakening of the structures, a rigorous preventive stripout, and the preparation of the structures to house the micro-charges that must induce collapse exactly as planned by the technicians. A few seconds, always breathtaking, to bring the structure to the ground, and then proceed with the secondary demolition and on site crushing.