The architect Rem Koolhaas created a unique building for this laboratory foundation. Behind the stone of the nineteenth facade, a discreetly futuristic structure, the principle as simple as smart. Almost all floors are mobile, allowing all three floors to be remodeled at will, as needed. In total, 49 possible configurations. « These floors are real flying carpets, but each support

    500 kilos per m2, » says François Quintin, who has been leading the project since its birth in 2012. 

    Lemonde.fr