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.
Valantin. UBootbunker Valentin Bremen Innenansicht Ausfahrt zur Weser Inside the Submarine Bunker Valentin Bremen Exit to Weser river own assumed Ricolacommons UBootBunker Valentin Taken with Nikon Coolpix L
Page 2023 Free-images.com. All images are Public Domain