The 'Propylee' is a futuristic walkway designed by French archistar Fabrice Notari and Rudy Ricciotti. It is an 8-metre high elevated space where a green area has been created to enhance the famous Boulevard du Jardin Exotique, which is one of the main entrance roads to the Principality of Monaco. The works, including the laying of the NPS® BASIC rafters, were carried out at night, ensuring a smooth flow of the daily traffic.