Adolf Hitler looking at a model of Linz in the Reich Chancellery Basement in Berlin, February 9 1945. The model of the museum was set up in January 1945 in an air raid shelter (Führerbunker), located near the Reich Chancellery in Berlin. It was ready for viewing on February 9, 1945, when it was examined by Hitler.

By January 1945, Hitler became obsessed with seeing a model of the planned cultural complex; he had his adjutants and Martin Bormann, his personal secretary and head of the Nazi Party Chancellery, call Giesler's office repeatedly, to ask when the Führer could view the model. Giesler's office worked around the clock to finish it. On the night of 7–8 February, Giesler brought the model to Berlin by truck and had it set up in the cellar of the New Chancellery building, where it was ready for viewing on 9 February by Hitler, Robert Ley, the Leader of the German Labor Front, and SS-Oberguppenfūhrer Ernst Kaltenbrunner, Chief of the Security Police, along with Hitler's personal photographer Walter Frentz and his valet, Heinz Linge. Frentz took some pictures of the event, one of which shows Hitler seated in deep contemplation of the model. Hitler was apparently entranced by what he saw:

Bent over the model, he viewed it from all angles, and in different kinds of lighting. He asked for a seat. He checked the proportions of the different buildings. He asked about the details of the bridges. He studied the model for a long time, apparently lost in thought. While Geisler stayed in Berlin, Hitler accompanied him twice daily to view the model, in the afternoon and again during the night. Others in his entourage were taken down to have his building plans explained to them as they pored over the model. Looking down on the model of a city which, he knew, would never be built, Hitler could fall in reverie, revisiting the fantasies of his youth, when he would dream with his friend Kubizek about rebuilding Linz.

Hitler visited the model frequently during his time living in the bunker under the Reich Chancellery, spending many hours sitting silently in front of it. The closer Germany came to military defeat, the more viewing the model became Hitler's only relief; being invited to view it with him was an indication of the Führer's esteem.

https://en.wikipedia.org/wiki/F%C3%BChrermuseum#HeroSection