Germany, Bavaria, Upper Franconia, Franconian Switzerland, Markt Wiesenttal (municipality), Riesenburg (cave/ruin), Versturzhöhle

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Photo credit: © Udo Siebig / Alamy / Afripics
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Keywords: -pronged, area, burgenstrasse, cave, country, destination, dolomit, erosion, formations, franc, frankish, greenbelt, hill, landscape, law, limestone, mattock, mountain, nature, nightmare, range, recreation, reserve, river, rock, scenery, trees, valley