The top two floors of the main building are devoted to aviation, and it was great to see this from the German point of view. The centrepiece is a Junkers Ju-52 airliner, one of my favourites, and there are artefacts from the history of Lufthansa. It's also interesting to see the Second World War from the other side, with a wrecked Lancaster bomber next to a display of air raid shelters and first aid kits.
The plane on the roof, meanwhile, is a 'Raisin bomber' from the Berlin airlift, and there's a display about this that will make you cry.
However, my favourite thing may have been the drinks cabinet from First World War ace Ernst Udet's postwar plane.
After a restorative coffee and cake, we tackled the cars in the building next door, followed by a section on the internet and smart homes excellently entitled DAS NETZ.
When the museum closed at six I took the U-bahn out to Alt Mariendorf to spend my evening with Marcy and her two teenage cats, Max and Moritz, who immediately assumed I was their new best friend and came over to say hi. For the rest of the evening they divided their time between snuggling adorably in their basket, playing adorably with a laser pointer, and snuggling adorably next to us, while we ate pizza, drank wine and talked scooters.