Island on the Mur (a river running through Graz) or in german: Murinsel.
In 2003 Graz, the second largest city in Austria, became the European Capital of Culture. For this occasion the New York artist Vito Acconci created the Murisland. Essentially it is a bridge with a little amphitheatre and a small bar in the middle.
Just if you are wondering: This photographic effect was achieved with HDR – High Dynamic Range. Essentially several pictures with different exposure settings are computed into a new picture – with that you can have light and dark areas exposed equally. You can read up on this method on wikipedia: http://en.wikipedia.org/wiki/High_dynamic_range_imaging