Frasassi caves inside, Genga, Ancona, Marche, Italy
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Photo credit: © Paolo Trovò / Alamy / Afripics
License: Licensed
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Keywords: ancona, attraction, cave, caverns, caves, europe, frasassi, genga, geology, italy, marche, stalactite, stalactites, stalagmite, stalagmiti, tourism, tourist, tunnel, underground