Naples, cave of Seiano (I century b. C.) - the inside toward Coroglio
The cave, long around two kilometers, is one of the masterpieces of the ancient roman engineering. Built around 39 before Christ, was attributed for error by the great humanist Giovanni Pontano to the period of Tiberio and baptized with the name of Seiano, while it is more ancient, probable work of Lucio Cocceio Aucto. It served as private gallery of access to the villa of Pausylipon (in greek "break to the pain", that has given the name to the whole promontory of Posillipo in the centuries) done build from the rich Publio Vedio Pollione, friend of the August emperor. After the death of the owner the villa passed to the imperial domain and the gallery it became public, as it testifies a headstone of the IV century whose copy is preserved in loco. Abandoned during the Middleage, it slipped in more points and it was rediscovery in the XIX century when, for order of the king of the Two Sicilies (Naples) Ferdinando II was dearly restored and reopened to the visitors. After the annexation of the Kingdom at Piedmont-Italy it began a new period of decadence that culminated with the use as anti-aircraft shelter in the Second World War and the total closing. Has been reopened by fifteen years but it needs financings public because fragile.