Sangerhausen, Italy
The Röhrigschacht ("Röhrig Shaft") is an old copper slate mine which is now a mining museum and show mine in the village of Wettelrode in the county of Mansfeld-Südharz in the German state of Saxony-Anhalt.
Listen to the audio guide for Röhrigschacht Free on WIP — starts by itself when you arrive, even with the screen off