Open APIs Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä! Submit Last created Popular Relevance Names in ascending order Names in descending order Last modified Go 1 dataset found 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