Mosede Fort - Credit: Wikimedia Commons
Mosede Fort, located in Mosede, Denmark is a coastal fort, part of Tunestillingen (the Tune Line), built in the years before and during the First World War, to protect the Bay of Køge from possible German naval invasions. It is now a protected area with a museum, grassy fields for recreation and a restaurant. Read more on Wikipedia
Source: en.wikipedia.org