Karl Marx-Hof - Waschsalon Nr. 2, Karl Marx Hof, Vienna, Austria

This massive building is more than half a mile in length and it has a fascinating history. During the Austrian Civil war in 1934, it was used as a stronghold by anti-fascists. Besides being used as a fortress during the war between Nationalist and Marxist forces, it was built to give low-cost housing to the working class of Vienna, with communal kitchens, bathrooms and laundries.