Ключевые слова: ancient, beautiful, calcium hydrogen, carbonate, cave, cavern, caving, colorful, columna, dark, deep, europe, formation, geologic, geology, hall, inside, interior, limestone, mineral, mountain, mural, nationale, natura, naturale, old, other, park, primitive, rock, slovenia, speleology, stalactites, stalagmites, stone, the attraction, tourism, trail, train, travel, tunnel, turkey, turkish, underground,