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.
Luchtfoto van het Fort bij Heemstede. nl Luchtfoto van het Fort bij Heemstede defensie nl NIMH Foto Technische Dienst Luchtvaartafdeeling other versions Custom marker Uploaded with Fort bij Heemstede Aerial photographs of Stelling van Amsterdam between
Page 2023 Free-images.com. All images are Public Domain