Falun mine by Ciro Santilli 34 Updated +Created
A hugely important copper mine in Sweden.
Selenium was initially discovered from ore from this mine.
Video 1.
Mining Area of the Great Copper Mountain in Falun, Sweden by World Heritage Journeys
. Source.
Video 2.
Falun mine tour by Focus by Sohaib
. Source. Not English, but we can see the tour images at least.