A legacy of the Trente Glorieuses, infrastructure once symbolised modernity. Now, it has negative connotations, but we cannot deny that it generate unusual perceptions. This magnificent heritage not only transverses sites, it also initiates them. Leclercq Associés sublimate those sites in order to introduce a new dynamic. Reinvestment is a major issue in terms of returning to the former image of a space that serves as a catalyst for all forms of mobility.