I enjoy visiting former mining sites and in particular those unique in some way, and this…read moreparticular mine is considered the longest continuously mined for Ag, Cu and Pb, and on the UNESCO World Heritage List. Since your thinking of visiting, take all three tours, each has its own personality. The Feuer und Wasser tour will have you climbing steep stair cases and stooping under low tunnels and also walking thru damp tunnels. If you understand engineering, the bidirectional wheel is quite remarkable. The tour of the operations is also without adjectives. Some of the machines are turned on so you will witness history at work. Easy to get to by bus from the hbf in Goslar;