MaiionPostBotB to c/[email protected]English • 2 years agoTIL The proposed Helsinki-Tallinn Railway Tunnel, when completed, will be the largest underground tunnel in the world. It will help to reduce time to cross the current Gulf of Finland route from tw...www.railway-technology.comexternal-linkmessage-square8fedilinkarrow-up149arrow-down10
arrow-up149arrow-down1external-linkTIL The proposed Helsinki-Tallinn Railway Tunnel, when completed, will be the largest underground tunnel in the world. It will help to reduce time to cross the current Gulf of Finland route from tw...www.railway-technology.comMaiionPostBotB to c/[email protected]English • 2 years agomessage-square8fedilink
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