Our DD is 21 next month, and recently moved home after splitting up with boyfriend of 4 yrs, and she's really down. We've discussed a short city break in Europe for her birthday, and Vienna seems to be top of the list especially for the Christmas markets. Has anyone else been, anything to recommend and perhaps a restaurant to book ahead for her actual birthday?? Or alternative suggestions ? It's DD (21) DD(19) and DH and I.