Dataset - Helsinki Region Infoshare

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
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

You can also access this registry using the API (see API docs).