Damon B.
Yelp
You can not go wrong if you venture to the top of the world for a drink.
When you go there expect a great view of Vienna, whether in the day or night, you will most certainly like the view. However before you get to enjoy the view, you will be greeted by the very best in the hospitality industry, with the friendliest smile and most pleasant way of speaking to you, in English and or German, sometimes both.
While they do serve normal and or common cocktails there, the menu will only list the special cocktails, designed by the staff themselves. While expensive for the common people, others will find the prices very normal.
But do remember you are paying for the view and quality staff as well.
I can assure you that your experience with be memorable in the most pleasant way possible.
SO GO NOW.