North-Western Tunnel
It is about long and is the fourth longest in-city tunnel of Europe ( after the Dublin Port Tunnel at 4 . 5 km , the Södra länken in Stockholm at 4 . 5 km and Giovanni XXIII Tunnel in Rome at 2 . 9 km ) . 
<triplet> Giovanni XXIII Tunnel <subj> Rome <obj> located in the administrative territorial entity