The cultural heritage plays a very important role in the Smart management of an area, and geospatial technologies are a perfect tool for the heritage knowledge, management and analysis. Photogrammetry, UAV systems and geographic information systems, can help in cataloguing the cultural heritage of a city. The main turistic value for Alcalá la Real, is the Monumental Group of the Fortress of La Mota and their related monuments.As the principal objetive of the Project, an analysis and the calculation of the optimal location of the watchtower network is made. To achieve this, on the one hand photogrammetry technics are used to get the geometric information of the studied area. On the other hand, photogrammetry through UAV systems is used to obtain the 3D model of one of the watchtowers, which is better preserved than others. Finally, programming tools are applied over GIS for the analysis and calculation of the optimal location of this watchtower network.