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.
Fort barraux Ercole Negro. Plan de fr Fort Barraux par fr Ercole Negro atelierdesdauphins htm Ercole Negro en Dauphin Ercole Negro PDold Floor plans of fortresses Fort Barraux
Page 2023 Free-images.com. All images are Public Domain