In the first half of the 20th century a great number of synagogues and jewish heritage was destroyed by the expanding National Socialism in Austria. The present master's thesis addresses the jewish community of Klosterneuburg and its synagogue which was first devastated during the "Night of Broken Glass" 1938 and finally torn down in 1991. This work deals with the research topic on two different levels. First, the background of the synagogue in the context of its typology and the Jewish history of Klosterneuburg is provided in a scientific review. Subsequently, a description of the architecture of the building and its characteristics is given in order to create a deeper understanding of the synagogue. In the second part of this work, the synagogue of Klosterneuburg was digitally reconstructed. All sources to create the virtual model are presented in detail. Furthermore, the structure of the three-dimensional document is described to allow following work if there are new findings. Finally, the visualization-process is explained and the results are presented.