United Kingdom
Between 1916 and 1930, the British Army built concrete vertical saucers along England's southern and northeastern coasts to detect enemy aircraft and airships.
Würzburg radar in Ostend
A new gadget allows the German army to accurately track enemy aircraft during World War II.
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If you love hiking and exploring industrial history, the Minett Trail in southern Luxembourg is the perfect adventure. Winding through the country’s historic steel heartland, this trail connects old industrial sites, cultural landmarks, and striking landscapes.
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