Landforms of Vienna

thumb|The Donauinsel, separating the New Danube (left) from Danube (right). The UNO-City is visible on the left side of the photo. thumb|Copa Cagrana with the lighthouse and a pontoon bridge. thumb|The northern tip of the island. The Donauinsel (Danube Island) is a long, narrow artificial island in central Vienna, Austria, lying between the Danube and the New Danube. The island is in length, but is only wide. It was constructed from 1972 to 1988 primarily as a measure for flood protection.

The Lobau () is a floodplain in Vienna, Austria. Located in the south-east of the city, on the northern bank of the Danube, it is a part of the Danube-Auen National Park.