The cultural landscapes of each country are an important element of its heritage. An excellent example of this is the presence of objects that in the past fulfilled an important industrial and economic function in a region. This group of objects includes windmills, which have lost their economic importance due to ongoing industrialisation. However, their continued presence in the landscape is evidence of the economic development of a particular region. The growing cultural awareness of society and the increased protection of cultural heritage objects mean that windmills, which have been neglected for years, are increasingly subject to conservation measures. In order to carry out preservation work, it is necessary to take inventory and create visualizations of windmills, posing problems in connection with the selection of suitable measurement methods and techniques, as well as the integration of the obtained data. This study uses photogrammetry and laser scanning to measure windmill structure for 3D modeling and visualization. The object of this study was a typical 19th century wooden windmill, which was predominant in western Poland. The research employed the methods of terrestrial laser scanning, airborne laser scanning and low-level aerial photogrammetry. The results of the research were exemplary visualizations of a windmill created from the acquired measurement data, evaluated in terms of their suitability for the further creation of various cartographic representations. In addition, the potential for using the most advantageous source of measurement data about the examined object to develop a conservation tool was identified.