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.
Flakturm Wilhelmsburg. Luftschutzbunker in Wilhelmsburg selbst fotografiert von Seebeer User Seebeer on de de German Seebeer Originally from de org Jun Seebeer Byte Flakturm VI
Page 2023 Free-images.com. All images are Public Domain