Istros Rooftop Bar

Istros Rooftop Bar, now operating as REDROOF Vienna atop the Radisson RED hotel, is a chic seventh-floor rooftop lounge that delivers 360-degree panoramic views spanning the iconic Danube River and the broader Vienna city skyline. The space blurs the boundary between indoors and outdoors with a bright, contemporary lounge feel and a lush terrace ideal for relaxed evenings. The bar menu showcases signature cocktails crafted by skilled mixologists, locally sourced craft beers, an appealing wine list, and locally inspired sharing bites. Open from late afternoon into the night throughout the week, this energetic rooftop venue is a popular gathering spot for visitors and locals alike seeking elevated views and creative drinks in central Vienna.