Donau Techno

Hidden behind an unmarked grey metal door between Mariahilferstraße and the MuseumsQuartier, Donau Techno pairs underground electronic DJs with cheap drinks and proper cocktails seven nights a week. The room — a former synagogue — gets washed in a shifting light installation that makes the high walls feel alive, while the vibe stays more living room than velvet rope. They even sell Würstel at the bar if you get peckish. Tip: it’s at Karl-Schweighofer-Gasse 10/A — look for the grey door, there’s no big sign.