Thursday, August 13, 2026 Search My Trip EnglishChinese
World news · travel · culture
Taiwan The Taiwan Times
Taiwan's window to the world

Giovanni XXIII Tunnel

The 302nd longest tunnel in the world

2.9 km · Length

Giovanni XXIII Tunnel (also called Passante a Nord-Ovest) is a road tunnel in Rome, Italy, that is part of the Tangenziale Est road. It is about 2.9 km (1.8 mi) long. The twin tunnels form a dual carriageway running under the Monte Mario hill, connecting the northwest zone to northeast zone of Rome. The tunnel was officially opened on 22 December 2004. During the construction, ostracod fossils were discovered. The tunnel is toll-free.

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other tunnels in Italy