postojna cave slovenia formations inside with stalactites and stalagmites |
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| navigate by keyword : ancient attraction beautiful cascade cave cavern caving chamber collonade column dark deep earth europa europe formation gallery geologic geologist geology hall hole inside interior jama lake largest limestone mineral mountain national natural nature passage postojna rock shape slovenia speleology stalactite stalagmite stone tourism train travel treasure tunnel underground wall wet |
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| Stalactites and stalagmites inside the Postojna cave Postojna Jama, Slovenia |
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