Unlined tunnels: Recently Modified

• Structures
• Tunnels, Caverns and Shafts
• Tunnels
• Unlined tunnels

Recently Modified

Tunnel of Eupalinos

Greece, modified on 10/11/2022

Tunnel de la Roche-Taillade

France (1913), modified on 07/08/2022

Dosso dell'Acqua Tunnel

Italy, modified on 22/10/2021

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