Hi, we can't decide whether to spend 2 or 3 days in Vienna- we like to have very busy days, and we're on somewhat of a budget. How many days do you think are needed?
Second, one of the days will be Sunday- are places (shops, museums, sites) generally open on Sunday?
Third, if we spend 3 days there, we are considering one of those boat cruise excursions of the Wachau Valley. Do you recommend this? Or, is there anything else you'd recommend doing a bit outside of the city?
Thank you very much!