The Germans' main focus of attention switched instead to "Schotterwerk Nordwest", the former quarry at nearby Wizernes, where work had been ongoing to build a bombproof V-2 storage facility. This project was expanded to turn the quarry into a fixed launch facility. Plans were put into effect to build a huge concrete dome – now open to the public as the museum of La Coupole – under which missiles would be fuelled and armed in a network of tunnels before being transported outside for launching. The Allies carried out further heavy bombing against both the Watten and Wizernes sites with little initial effect on the buildings themselves, although the rail and road network around them was systematically destroyed.