postojna cave slovenia europe
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postojna cave slovenia europe |
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| navigate by keyword : 1213 17th although ancient attraction beautiful cave cavern caving century column dark dated deep described europe first formation geologic geology graffiti grotto hall history indicates inside interior jama johann karst limestone longer mineral mountain much national natural nature nobody phenomena pioneer postojna rock slovenia speleology stalactite stalagmite stone study tourism travel tunnel underground use valvasor von wall was weikhard |
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| The cave was first described in the 17th century by the pioneer of study of karst phenomena, Johann Weikhard von Valvasor, although graffiti inside dated to 1213 indicates a much longer history of use |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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