Reread Brenkjtravel's comments on Munich & add Munich Walks to get introduced to Munich. Check TripAdvisor.com for things to do & see in Salzburg. Explore this website for your destinations. (Type in Munich, then Salzburg, etc.) Read several guide books from your local library on Germany and Austria (they don't have to be new, 5 years old is fine). Planning is half the fun of a trip for most people...