Prompt
"An illustration of a secret underground laboratory in Nazi Germany, 1940s. In the center, a group of scientists in lab coats and helmets gathered around a large nuclear reactor model, surrounded by blueprints and equations on blackboards. In the background, a sign reads 'Uranverein' and a map of Germany shows key locations: Berlin, Leipzig, Hechingen, Haigerloch, Göttingen, and Hamburg. The style should be reminiscent of WW2 era technical drawings and photographs, with muted colors and a sense of urgency and secrecy."
