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A tunnel on route 61 a long the north shore of Lake Superior in Minnesota.
Freeway tunnel near Byron Bay, NSW, Australia
A beautiful view of old metallic tunnel
salvador, bahia, brazil - january 15, 2021: sewage and rainwater collection pipes are seen in the Ondina neighborhood in the city of Salvador.
Communication tunnel at underground bunker or subway, etc.
Mine/tunnel entrance at night
Concrete long rectangular tunnel with storage of building materials, bunker perspective view
Close-up of metal pipelines in industrial plants
View of the mine entrance for copper mining.
Silhouette of businessman at the end of the tunnel.
Dans le lanceur de torpilles d’un sous-marin, à Pointe au Père dans la province de Québec
View of a Salt Mine Cave next to the Salt formations in Garmsar of Iran
Blast tunnel in a bomb shelter
Coal mine underground corridor with support system
Vaulted concrete underground tunnel of sewer, heating duct or water supply system.
Canada British Columbia, Fraser canyon highway.
Oil Storage tunnels that were built during WWII following the bombing of above ground storage tanks by the Japanese in 1942. They were never used during the war, and two of the tunnels were used briefly in the 50's for storing jet fuel, but became inoperable after around 3 years due to seepage.
Two small tunnels arching over a multi-lane highway running through scenic countryside
A narrow, pedestrian tunnel that is painted white and illuminated by fluorescent light fixtures sits empty.
Coal mine underground corridor with support system
spiral welded steel pipe
Underground corridor with steel support system in Makoszowy coal mine, Poland
Dark dirty abandoned subway tunnel with rusty railway.
Inside the east bound Interstate 80 bore of the Carlin Tunnel, Elko County, Nevada, USA.
Сonstruction of iron pipe on the river bottom
Copper Mine tunnel located in the town of Hyder, Alaska but situated within British Columbia.
underground tunnel
Dry culvert and arroyo in Mesilla New Mexico. Infrequent rain, but rain can be sudden requiring good drainage in this desert southwest USA community.
Kanagawa,Japan-July 19,2019: New Tomei Expressway Tanigayama tunnel under construction
Inside patterns of a cylindrical rusted metal pipe
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