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All Files
Brenner Base Tunnel
By Arie van den Broek in the group Tunnel walk and talk
Las Vegas
By Paolo Kerguel in the group Tunnel walk and talkPedro Szekely, wikimedia creative commons licence
Alaskan Way Replacement Tunnel (SR99 tunnel( bored by Bertha produced by Hitachi Zosen)
Seattle City Council (WCC)
cover tunnel photo by: Matt Brown from London, England / CC BY
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