Just got back from a year in Germany. I was in Hamburg, but spent a lot of weekends visiting every little town we could find.
There is a great museum in Munchen, the Deutches Museum.
But plan on taking at least 2-3 days to see the whole thing. They got some great things in the aviation section, including a real V-2, an ME 163, ME 262's, Ju 52, quite a few very nice displays.
Also, go see Nymphenburg palace, Lustheim and Schleisheim. IIRC, the Schleisheim museum, you can buy a double ticket to also go see the aviation museum outside of town.
Was going to insert a pic, but not sure if I can. Do I have to have it hosted before I can link to it? This doesn't allow for uploads.
Cheers,
Spitter