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.
Geefsweer bunker zijaanzicht. Geefsweer Delfzijl Groningen Nederland own User Hardscarf Geefsweer Buildings in Delfzijl Bunkers in the Netherlands Cczero
Page 2023 Free-images.com. All images are Public Domain