This diploma thesis deals with the Leopoldstädter Tempel, which was destroyed in the November pogroms of 1938. After a closer look at the temple, a detailed 3D model of the temple is created using the software ArchiCAD and 3ds Max, based on preserved documents and suitable reference buildings. Subsequently this model is revised for use in a real-time-engine. A interactive visualization is then created using the Unreal Engine 4, which shows the special architecture and the history of the building interactively. The focus of this work is to present the workflow which is still rather untypical for architects, highlighting the advantages and disadvantages of the different approaches and trying to clarify the question of whether the application of a real-time engine is justified in the architecture sector. There is also an outlook given on current and future developments in this area. In addition, a brief overview of Viennese Judaism is presented and two excursuses about the techniques of a real-time visualization are given.