rubble mountain
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The Big Bunker Mountain is a large hill in Volkspark Friedrichshain that conceals a flak tower, and if look for it, you’ll find it near the top of the hill.
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Between 1940 and 1942 three flak towers were built in Berlin. They formed a triangle around the center of Berlin with one tower in the west, one in the east and one in the north. But can we find them today?
