Taking a ~1 month euro trip. Germany- BMW attractions?

[Down_Shift]

Leaving mid april to mid may on a backpacking trip to Italy/Germany/Switzerland.

We'll be hitting Dresden, Munich, Hamburg! I already have the BMW Museum in the book. Anything else worth checking out?? non-BMW ok also.

If there's anything in Italy/Switzerland worth checking out non-BMW related that's cool too (need to keep the GF happy with the trip also!)