A railway track runs parallel to the hangars and passes under the main hall. You can see this so-called "postal tunnel" on the picture below.
During the war, combat airplanes were built there. The tunnel can be reached via the two entrances of the postal service to the left and right of the main hall.
During the war, combat airplanes were built there. The tunnel can be reached via the two entrances of the postal service to the left and right of the main hall.
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