During the Campus Innovation held on 7 October, Bouygues Construction invited its visitors to take a tour of its newly renovated head office site, Challenger. An ambitious project carried out on a fully occupied building, which allowed the Bouygues Construction head office to become a model of sustainable renovation, obtaining triple HQE®, LEED® and BREEAM® certification at the very highest level. And now you too can take a guided tour of this unique building via this dedicated video!