The original Channel tunnel

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 The first attempt to dig a tunnel from France to England was in the 1880s. They sunk some of the shafts and did tunneling before abandoning the effort. Work on it was done on both sides of the English Channel. 

These are pictures of what remains of the English effort. You can find more, as well as a brief description of the project at Referenced's post Inside The Original Channel Tunnel 1880.

One of the boring tools