The 15-hectare site Schenefeld houses the European XFEL research centre, where around 350 people will work. The site accomodates the main building (in the foreground), supply halls for the underground tunnel "fan", infrastructure facilities, and possibly buildings for partner institutes. (Credit: © European XFEL (Blunck+Morgen Architekten))

Photo montage of the European XFEL site Schenefeld