DC Towers, Skyscrapers in Donau City, Vienna, Austria

DC Tower 1 is a 220-metre, 60-storey skyscraper with a glass facade in blue and grey, crossed by dark diagonal bands and interrupted by two narrow vertical recesses on the left side. Its flat top carries a short red-and-white striped mast. The wider base is partly hidden by lower structures. A second tower, DC Tower 2, is planned at 175 to 180 metres.

The site by the Reichsbrücke was contested from the early 1990s, when initial concepts were all rejected. In 2002 the WED held an international competition won by Dominique Perrault, whose master plan the city council approved on 1 July 2004. A 2007 rezoning raised the permitted height from 120 to 220 metres. The foundation stone was laid on 17 June 2010, and DC Tower 1 opened on 26 February 2014.

The name expands to Donau City Towers, after the district on the Danube's left bank. The complex is mixed-use: the lower 15 floors of DC Tower 1 hold the Meliá Vienna hotel with 253 rooms, most other floors are offices, and the 57th and 58th floors carry the hotel's restaurants and bar. The circular terrace on level 58 sits at 207 metres; the half facing the city centre belongs to the bar, the other half served as a paid viewing platform until the end of 2016.

DC Tower 1 stands directly at the Reichsbrücke, at the entrance to Donau City in Vienna's 22nd district. The circular terrace on level 58 sits at 207 metres; the half facing the city centre belongs to the bar there, while the other half served as a paid viewing platform only until the end of 2016. The hotel and its catering areas occupy the lower 15 floors and the 57th and 58th floors.

The facade consists of thousands of glass panels arranged in a way that reflects light differently depending on the time of day. This arrangement creates an ever-changing appearance that is visible from different points across the city.