The location on the famous Vienna Ringstrasse boulevard supplied the inspiration for the name. In the same way that everything on the Ringstrasse goes round in a circle, O – the Club also stands for a never-ending story that keeps on turning. The location is already cult; a smart dinner club used to be at home here in the former pedestrian arcade for years. The order of the day here now is a sophisticated party ambience.

The musical concept creates a link between electronic music of the highest quality and entertaining party music. There's an after-work on Thursdays, a top-quality booking of international house and techno DJs on Fridays, and Saturdays are given over to "Super Disco" with hits of the 1990s and 2000s. From the main floor, visitors can also access the cocktail bar called "The Red Baron" or another dancefloor.