Ringturm

Ringturm (Ring Tower) is a prominent skyscraper in Vienna, Austria, and is the headquarters of the Vienna Insurance Group. It was built from 1953 to 1955 after a design by Erich Boltenstern at the Schottenring. The tower is tall, with of office space, and is the second highest building within the Vienna Ringstraße, after the Stephansdom. It is a venue for architecture exhibitions, and is known for being turned into a piece of art annually, wrapped in cloth designed by notable artists including Robert Hammerstiel, Xenia Hausner, Arnulf Rainer and Mihael Milunović.

== History == The Ringturm tower was built from 1953 to 1955 after a design by at the Schottenring, part of the Vienna Ringstraße. The tower of was an innovative project when Vienna was reconstructed after World War II. The building was erected on a property that held the only building of the Schottenring demolished in the war. At 23 floors, it is the second highest building within the Vienna Ringstraße, after the Stephansdom. The building has of office space, and is the headquarters of the Vienna Insurance Group. It also houses offices of the ''. The facade and some other parts were reconstructed in 1996.