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Photo: Jörg Braukmann, CC BY-SA 4.0 via Wikimedia Commons
47 metres (154 ft) high sea stack of Buntsandstein
Lange Anna, is a 47-metre-high (154 ft) sea stack of Buntsandstein in the North Sea island of Heligoland, Germany. Its local name is Nathurn Stak. Climbing the stack is not allowed but tourists may view the rock from a distance.
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