VietnamNational value
Underground tunnels that were used to attack American troops and also as shelters during bombings.
DenmarkRegional value
A secret Cold War-era US mission to plan missile launch sites under the ice in Greenland. The plan was to dig 2,500 m...
AustraliaRegional value
An abandoned train tunnel is now filled with bioluminescent bugs. Flooded train tracks lead to an abandoned passagewa...
Russia / DagestanRegional value
Gunibsky tunnel or Tsarsky, as it is called by the locals. Year built: 1866-1867 Length 103m, height 6m, width 4m. Th...
USA / CaliforniaThis remarkable and remote tunnel in California's Mojave Desert was the work of a single and very determined man. Gol...
UKBuilt in 1902 to allow south London's dockworkers easier access to the docks, the cast iron Greenwich Foot Tunnel tun...
NorwayRegional value
ChinaThe kitsch tunnel runs under the Huangpu River in Shanghai’s waterfront Bund district and is one of the city’s top to...
CanadaBuilt into three mountain ranges in the early 1900s by the Canadian Pacific Railway, the Othello Tunnels were dug to ...