The Karl-Marx-Hof was a fortress-like housing estate built by the Social Democrats between 1927 and 1930. A kilometre in length, its huge walls contained nearly 1400 apartments for Viennese workers. In her photograph of the building Tudor-Hart summons both its strength and sense of modernity. However, the permanence evoked by the architecture soon proved to be more apparent than real. In February 1934, during the short-lived Austrian civil war, the building was shelled by Austro-fascist forces. Out-gunned, and concerned about women and children still in their homes, the Karl-Marx-Hof?s defenders surrendered. The first mass movement against European fascism was easily defeated and the Austrian Social Democrats were driven into illegality and exile.