 The cycle of appearance and disappearance that took place according to the daily, monthly and yearly lunar and solar cycles, and the position of the potential viewer was underscored at a larger magnitude by the demolition process, which consisted in the removal of the building from the top down, floor by floor.The demolition lasted until March 2008, with the majority of the rubble taken to a fill in the River Plate at Costanera Norte near Jorge Newbury Airport.After discovering the prison in January 2006, while exploring the neighborhood of Parque Patricios, where he'd recently moved from New York City, Wulsin spent four months navigating the bureaucracies of the national and city governments of Argentina and Buenos Aires, respectively, to gain authorization to enter the building and carry out the onsite work.