Grotta delle Felci
The Grotta delle Felci (Italian for "Fern Grotto") is a cave located on one of the oldest regions on the island of Capri, in Campania, Italy. The cave, overlooking the sea on the southern side of the island, is located about 200 metres above sea level. The cave is 370 square metres in volume, and has been extensively excavated since the 19th century. Excavations on the cave were first begun in 1882 by Ignazio Cerio. Some of the remains from these excavations are kept at the Centro Caprense: Ignazio Cerio Museum, and the Museum of Anthropology of the University of Naples. 549 archaeological findings and fossils have been found internally, many of which have been dated to the Neolithic period.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).