This will be my first trip to Berlin and Dresden. My Munich trip was in Dec 2017. I most enjoy museums especially those with decorative arts, the art in churches, beautiful rooms in old residences & castles and eating local foods. Currently my plan is 6 full days in Berlin after arriving the previous evening from Seattle. Besides museums there, I plan to go to Potsdam for most of one day. Then on day 7 after arrival take a morning train to Dresden and stay there for 2 nights. On the afternoon of day 9 take a train to Munich. There I plan stay 7 nights and do a day trip to Salzburg.
I have no interest in hiking when abroad, the Pacific Northwest affords me lots of great outdoor options. I do enjoy swimming, especially outdoors or in opulent pools.
Having read previous posts, I will not go to Neuschwanstein but am open to visiting other castles or grand homes with impressive interiors beyond those in the cities I mentioned.
Any suggestions for changing the time spent in each city or little known museums that have good art other than paintings would be appreciated. (I don't dislike paintings but am especially fascinated by the intricacy of 3-D artworks.)
Thank you in advance for your help.