Danube Tower

Danube Tower is an observation tower in a large park in Vienna, with views of the Danube River and the city, plus a revolving restaurant and a cafe. The restaurant at the top rotates 360 degrees, completing one turn in about 30 minutes, so diners can see the Vienna panorama during their meal. The restaurant requires advance booking on its official website, and the tower also has a slide that goes down. The outdoor observation deck is a windy place regardless of the season.