Dutch
Video previewThe Germans built a verly large concrete structure in IJmuiden in World War II, which was used as an underground harbour for speedboats and submarines protected from air raids. Because of attacks from the Royal Air Force with special bombs not much more than great piles of rubble is left.
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01:23
Dutch
1945
Netherlands Institute for Sound and Vision
None
http://creativecommons.org/licenses/by-nc-sa/4.0/
