Galleria Borbonica is situated in Vico del Grottone 4, 100 meters from Plebiscito Square. Until a few years ago it was a veterinary laboratory, now this is the entrance of the Bourbon Tunnel. A staircase with 8 ramps, 33 yards deep descending into the belly of the Chiaia district in Naples. The second entry is in Via Domenico Morelli 40, through the crosswalk of 'Quick parking'. The Bourbon Tunnel was built in 1853 by Ferdinand II of Bourbon, who, concerned about the outbreak of a rebellion, asked for an escape from the Royal Palace to the barrack in Via della Pace, now Via Morelli. The work was however not completed and, during the second World War, the Tunnel was used by residents of the area as a military hospital, later becoming the Hall Judicial Deposit.The war left its mark even in the subsoil.