This unique, op-artish metal sculpture popped up on Wyspa Daliowa in June 2017, marking the end of revitalisation works on the smallest of Wrocław’s clustered islands. The artist, Oskar Zięta, created the structure using the so-called FiDU method, a process he invented himself: the 35 ribs were made from thin steel sheets and inflated with compressed air to form slightly imperfect and highly durable shapes. Its ‘nave’ design is meant to mimic the architecture of the nearby Hala Targowa and St. Mary’s Church on Piasek Island, and - from what we’ve seen - is treated as a perfect photo shoot location by tourists and locals alike. At 15 metres long and 6-7 metres high, the Nave is officially the city’s biggest sculpture and arguably the most visually striking one.