Metro train tunnel construction. Worker helping to construct an underground tunnel for trains. Tunneling requires infrastructure such as power generat

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Metro train tunnel construction. Worker helping to construct an underground tunnel for trains. Tunneling requires infrastructure such as power generation, ventilation, pumping, drilling and welding. This construction work took place between 2000 and 2005, on the Paris Metro, the underground train system in Paris, France. The Paris Metro was founded in 1900, and by 2005 had over 200 kilometres of tunnels and over 300 stations.

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Size: 5197px × 3425px
Photo credit: © PATRICK LANDMANN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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