Open APIs Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä! Submit Last created Popular Relevance Names in ascending order Names in descending order Last modified Go 7 datasets found Materials of Helsinki City Archives The Sinetti archive information system operated by the City of Helsinki Archives provides collection data from archived documents of the City of Helsinki. The document... JSON Fortifications of First World War in Helsinki The dataset depicts the first World War-era fortifications, as well as some details of the fortifications. The data is based on a survey commissioned by the Public Works... WMS WFS Orthophotographs of Helsinki This dataset provides the orthophotographs of Helsinki in GIS API from 1932 to present day. Additionally, photos from 1988, 1976, 1969, 1964, 1950, 1943 and 1932 are provided as... WMS WMTS TIFF Historical guide maps of the City of Helsinki Historical guide maps of Helsinki from 1940, 1952, 1962 and 1999. The guide maps include the following Information: place names, streets, roads and railway connections, public... TIFF WMS Pictorial map of the City of Helsinki The pictorial map is a bird’s-eye view map of the inner city of Helsinki. Buildings and other features are presented in 3D. The map covers the southern inner city of Helsinki.... TIFF PNG WMS Historical detailed plan maps of the city of Helsinki Old detailed plans of Helsinki. The detailed plan maps for years 1820, 1838 and 1878 can be downloaded as TIFF-files. The guidemaps for all years can be found through WMS API.... TIFF WMS Map of Helsinki and its areas from 1909 Map of the City of Helsinki and its areas from 1909 prepared by the City of Helsinki construction office. The map covers the entire urban area at the time and the city-owned... TIFF WMS