To increase visitors to the Andra Radioactive Waste Storage Site for their annual Open House (in the Aube region of France) a series of 4 billboards were produced with the titles "Come meet one of the directors of the site", "Come verify one of the structures of the site", "Come discover something new at the site" and "Come pass 300 years in one day at the site".

For each billboard, its specific theme is supported by the same forest background in order to localize the various ecological actions of the site. Visiters increased by 300%.