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:
Cast sarriod de la tour pianta nigra fig . Pianta del castello di Sarriod de la Tour SaintPierre Valle d'Aosta Italia Carlo Nigra Torri castelli case forti del Piemonte dal al secolo XVI La Valle d'Aosta ed Musumeci Quart AO figura before Carlo Nigra PDold Sarriod de la Tour Castle Plans of castles and towers by Carlo Nigra