1) Fortification in Germany
Found on
https://www.crosswordclues.com/clue/regenwurmlager
The Regenwurmlager (Camp Regenwurm, literally: Camp Earthworm) is an extensive underground fortification area constructed by Germany in 1920s-1940s, now in western Poland, near the city of Międzyrzecz (formerly Meseritz). It was a system of underground bunkers interconnected by tunnels and corridors of total length over 100 km. On the Soviet maps...
Found on
http://en.wikipedia.org/wiki/Regenwurmlager
No exact match found.
