Hi!

Here is my tentative E. Europe intinerary. I have 2 weeks to check out 3 countries (Czech Republic, Hungary and Austria):

Vienna – 2 Days
Salzburg – 2 Days
Budapest – 3 Days
Prague – 3 Days

As you can see I have around 4 days to hit a few small towns/day trips.
I was thinking either:
Hallstatt
Cesky Krumlov
Karlov Vary
Sopron
Any suggestions on what not to miss?