In the mining tunnel, which has now been opened to visitors, ore was mined from the 1940s onwards.

After the mine closed, cheese was stored in this part.

- You can see how they did to load wagons that went on the rails, says Maaike Ulfvebrand who is operations manager at Sala silver mine.

Another news this year is that visitors go to the mine on their own.

In the clip, you can see pictures from the mining tunnel that was previously closed to the public.