Linzer Auge, Steel structure on Danube River in Linz, Austria.

The Linzer Auge was a pontoon platform of 16.52 metres in diameter, anchored in the Danube near the Ars Electronica Center, with a load capacity of 15 tonnes and room for 200 people. Its central water opening was about 40 cm deep and covered by a safety plate. Two footbridges linked it to a concrete foundation on the bank.

The structure was built in 2009 to celebrate Linz as the European Capital of Culture but faced technical problems from the start. Flooding in 2010 destroyed it completely, ending the short life of this riverside installation.

The platform was initiated by the Chamber of Architects and Engineering Consultants for Upper Austria and Salzburg for Linz's 2009 European Capital of Culture year. Because of construction failures and its position right beside the Nibelungenbrücke, locals nicknamed it "Nudlaug" and "Fades Aug".

The structure no longer exists after being destroyed by flooding in 2010, so it cannot be visited today. Information about the original installation can be found at the nearby Ars Electronica Center.

The platform was nicknamed "Nudlaug" and "Fades Aug" by locals, who found it less appealing than Graz's Murinsel. Its planned rotation by Danube current never worked; an electric motor was added in April 2010, giving one turn every three minutes. Three years after it sank, the steel was melted down.