A WMS (Web Map Service) is a service that produces maps of spatially referenced data starting from geographic information, and is a technical specification defined by the OGC (Open Geospatial Consortium). This WMS presents the "Real estates and anthropizations" layer of the Reference Territorial Database of Bodies (BDTRE), structured according to the national technical specifications (DPCM November 10, 2011), collects the definition of all those objects that derive from anthropic activity in the territory and that do not constitute transport infrastructure (described instead in the specific layer). The contents of this service are divided into the following levels corresponding to the classes of the BDTRE:- buildings (both of a residential and industrial nature and tertiary activity);- artefacts (works that do not have a stable character in terms of habitability and human location); variously located throughout the territory; - transport works (works such as artefacts but of greater complexity); - soil defense works; - hydraulic defense and hydraulic control works. The maps can be viewed using various software (e.g. QGis)