This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Amelungsburg Plan. de Lageplan der Amelungsburg bei Hillentrup nach Ludwig Hlzermann Buch Lokaluntersuchungen die Kriege der Rmer und Befestigungsmanieren der Germanen Sachsen und des spteren Mittelalters betreffend Mnster Ludwig Hlzermann PDold Archaeological sites in North RhineWestphalia Hill forts in Germany PDold Amelungsburg