Take a final look inside the 1,500ft-deep underground tunnels that will soon be shut off to humans for 100,000 YEARS

THIS underground tunnel is set to be blocked up for 100,000 years as Finland carries out a world first when it comes to nuclear waste.
Around 4,000 generations of humans will be unable to set foot in the underground tunnel in Eurajoki, on the west co... [3270 chars]