![](http://www.alamy.com/thumbs/6/E2985F64-C5E8-4F19-AE77-4347BDC35ACD/MM3D8M.jpg)
Underground station narrow gauge of Nazi German Festungsfront Oder-Warthe-Bogen (Fortified Front Oder-Warthe-Bogen) called in Polish the Miedzyrzecki
Underground station narrow gauge of Nazi German Festungsfront Oder-Warthe-Bogen (Fortified Front Oder-Warthe-Bogen) called in Polish the Miedzyrzecki Rejon Umocniony MRU (Miedzyrzecz Fortification Region) in Pniewo, Poland. May 2nd 2018, built in secrect between the Oder and Warta rivers from 1934 to 1944 and unfinished, was the most technologically advanced fortification system of Nazi Germany. Some of 100 concrete defence structures where connected by 32 km network of underground tunnels © Wojciech Strozyk / Alamy Stock Photo
Size: 4239px × 2821px
Location: Pniewo, Poland
Photo credit: © Wojciech Stróżyk / Alamy / Afripics
License: Licensed
Model Released: No
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