Expansion phases

In addition to the tactile model, you can experience the building complex's historical construction stages under the GDR (mid-1980s), the Nazi regime (early 1940s) and the German Empire (1877) through virtual reconstructions.
You can use the augmented reality (AR) feature to view the desired expansion phase. Please make sure that there are no obstacles in your device’s field of view. Then start the AR feature. Now you can discover the model for yourself, either by walking around it as a whole, or zooming in on details with your device.
Alternatively, there is a film available to guide you through the construction phases. Click on the start button to play.