Tarnowskie Góry Lead-Silver-Zinc Mine by Jarek Pokrzywnicki
Some basic information and hints how to visit the site - possible inscription of 2017.
Whatever the final inscription will be the most impressing sites are the Historic Silver Mine (Zabytkowa Kopalnia Srebra) and Black Trout Adit (Sztolnia Czarnego Pstrąga) both located south of Tarnowskie Góry town in Silesia Voivodship (Southern Poland).
Due to working hours it is better to start visit form Historic Silver Mine (there are guided tours in English, German, Russian or Czech - at least in theory) ask at the main office. The whole trip takes around 1,5 - 2 hours. After visiting the mine you can also visit the nearby open-air museum of old mining machinery.
The trip to Black Trout Adi requires some kind of transportation as it is located around 5 km from the Mine (there is a good marked bicycle trail). There is an underground water tunnel with boat service (separate ticket is required, unfortunately there are no combined tickets). You can start your boat trip from any of two mining shafts (szyb Sylwester or szyb Ewa) - if the boats are not there you can walk in the park to the other side or wait until the boats arrive. The whole trip takes around 40 minutes including walking down and out the mine.
More info on website http://www.kopalniasrebra.pl/EN/kopalnia/zwiedzanie.htm
Depending on what finally will be inscribed there are many other places in Tarnowskie Góry connected with mining - the whole Old Town (with many old houses - some of them belonging to old miners), old church, mining monuments, belfry. Other mining monuments are preserved in close vicinity of Historic Silver Mine - old mining shafts, huge slag heap (Hałda Popłuczkowa), former narrow-gauge railway.
For visiting all those sites propably one day will not be sufficient. If you want to see the most important sites opt for the mine itself and the Black Trout Adit - those two are must-see.