In 1938 the construction of a new theatre in Moscow conceived by the Russian theatre director Vsevolod Emilyevich Meyerhold (1874–1940) was abandoned. This chapter charts the findings of a research project that examined Meyerhold’s lost architectural experiment using computer-based 3D visualisation as a research method. The overall aim is to offer a record of the decision-making processes inherent within the practice of visualising an unrealised architectural project. Focused on the practical implications had the project been realised, the processes of archival research and visualisation were undertaken simultaneously by the author (as both modeller and researcher) and the resulting images are presented as a ‘platform’or ‘document’for interpreting the surviving source material: from Meyerhold’s writings and the influence of this previous scenographic work, to incomplete architectural drawings and written …