Giovanni XXIII Tunnel

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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.

The tunnel is toll-free.

• "Map of the Tunnel" (in Italian).

41°56′28″N 12°26′59″E / 41.9410°N 12.4496°E / 41.9410; 12.4496