In June 2019, eight years after the implosion of Tower nº5, the remaining three towers of the housing complex in Porto were demolished. 
The process was followed daily, waiting for the exact moment when it exposed the building's central void, a real life, 1:1  cross section. Such was the moment chosen to represent this act of disappearance, using conventional architectural drawing language. 

Prepared in May 2021 for the exhibition "The end is the beginning" at Circo de Ideias, curated by Pedro Baía.
The drawing is available in offset print 70x100cm. (Here)