We love adaptive reuse here at Inhabitat, and can never get enough converted barns and upcycled water towers. But the adaptive reuse project that takes the cake, and is one of the most inspiring building rehabilitations we’ve ever seen is located in Vienna, Austria. These incredible city-within-a-city Gasometers in Vienna were once gas storage tanks, and thanks to an incredible rehab by an all-star team of European architects, including Jean Nouvel and Coop Himmelblau, they now house over a thousand Viennese tenants in a mixed-use community rich with entertainment, office, and retail spaces. One of Vienna’s most iconic architectural landmarks, these historic Gasometers have also become an inspiring tale of innovative urban design. Click here to find out more about the story behind the amazing upcycled Gasometers.