Crypta Neapolitana, underground tunnel of the Roman era at Naples.
Grotto of Posilippo.
BLACK, William L.R.C.S.E. Narrative of Cruises in the Mediterranean in H.M.S. “Euryalis” and “Chanticleer”, during the Greek War of Independence (1822-1826). With an Appendix on the Climate, and Meteorological and Nosological Tables. Two coloured and eighteen half-tone illustrations, Edinburgh/London, Oliver and Boyd/Simpkin, Marshall and Co., 1900.
Naples / Napoli / anc. Neapolis
Art and antiquities
The Gennadius Library - The American School of Classical Studies at Athens