Underground caves with stalactites and stalagmites. Frasassi Caves, Italy

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Size: 5504px × 3674px
Photo credit: © Stefania Valvola / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: cavern, caves, concretions, exploration, formation, frasassi, geological, geology, hollow, italy, karst, limestone, millennia, millions, natural, nature, river, rock, sculptures, speleology, stalactites, stalagmites, tourism, underground, unesco, years