The airports of Paris have set up Environmental and Sustainable Development Centres, including one at Roissy-Charles de Gaulle. Here, visitors can get information about the airport's environmental policy. It is also the place to find out more, through an interactive exhibition, about the history of the building and how it works. You can consult the digital modules – spread over 600sqm of space – regarding the topics that interest you, from ecology to the economy, including the issues concerning regional planning. For even more details, the airport offers a guided tour by bus.