I built this scene in Blender. It shows a replica of a real building in the Netherlands that was built by the Germans during WWII at the edge of my hometown. It was built like a bunker, but made to appear like a farm. From it, they listened and spied on all radio traffic, and communication with the U-boats was also done from here. More info on its history can be found on my website: htt ps://3ddre.puntenel.nl/blog/birkenhof-bunker-valkenswaard/