in 2002, wed organized an international competition for a master plan to complete the remaining undeveloped third of the core area. the competition was won by french architect dominique perrault, who proposed two high-rise towers and a transition zone to the new danube. the 60-story dc tower 1, about 220 meters tall, will be austria's tallest building. together with the 46-story dc tower 2, 160 meters tall, it will bring a new density to the district.