Our Danube cruise was great, loved the trip it self and looked forward to our stops in Vienna and Budapest. However, I was blown away with city of Novi Sad and Petrovaradin Fortress. View from our boat to the fortress was magnificent, and fortress it self was even better. At the very top there were restaurants and cafe's full of people enjoying the panorama of Novi Sad. I also managed to get my tooth refilled, something I needed to do before the trip. Turns out Serbia's has a highly developed health tourism. Anyhow, part of this beautiful fortress is a 5 star hotel, and I am making my plans to revisit and experience sleep overs at this mid century temple.