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:
Carlsburg Erik Dahlberg . en Map of swedish city fortress of Carlsburg at the junction of the river Geeste with the river Weser The layout of the city was designed by Erik Dahlberg around modifying the original plan by Jean Mell from de Karte der schwedischen Festungsstadt Carlsburg an der Mndung der Geeste in die Weser Den