The purpose of this thesis is to create a digital reconstruction of the synagogue in Bielsko- Biala, Southern Poland, which has been destroyed by the National Socialists in 1939. It was built according to the plans of architect Ludwig Schöne, who had realized a similar design in Szombathely (Hungary) a few years before. The envelope of this building is still preserved today. This thesis is part of an ongoing program, aiming at the documentation and digital preservation of physically lost synagogues. Beginning with a concise summary of the development of the City of Bielsko-Biala and its local Jewish community, the first part of the thesis aims at setting the building into a historical context, beginning with its inception to its destruction, followed by an analysis of the structure. The main part of the thesis is focusing on the method of digital reconstruction. Following the illustration of available documents and data, the nearly identically constructed buildings are compared to each other and influences of Szombathely synagogue on the reconstruction are specified. The process of modeling and CAD techniques are presented in the final part including the results of the visualization.