The architecture I believe is just jaw dropping and it is so beautiful so I have been informed and not only do you have hundred of year of architecture , there is also the music and of course the Spanish riding school with the skillful riders and ( same I am highly allergic to horses ) Classical music and architecture what more could I ask for oooh the food , I am a huge foodie and a food fan !
As with any trip I lay the seeds of where I am thinking of listen to the opinions of others and we usually at some point go to where I have suggested anyway, we have in recent times been to Italy 3 times and I do love Italy and would love nearly to explore further my family would like a change. I am not one for beach holidays and if it is near the sea there really has to be some historical place for me to visit otherwise I truly go stir crazy.
For Vienna the best place to find all the information you need for the city apart from in a guide book is the tourist Info , we did this for Florence and it was superb you can narrow down your points of interest and get so many recommendations. And travel info is a must in a city like Vienna as it is very disconcerting to get lost in a big city as my legs can confirm when we got lost in Florence and it was
up some pretty big mountains ok ok it was hills but they were really super hilly.
There is really something I have to say when you stay in the heart of a city you really capture its heart and romance.