Random triples
| Subject | Object |
|---|---|
| gptkb:Mines_of_Rammelsberg,_Historic_Town_of_Goslar_and_Upper_Harz_Water_Management_System | 10th century |
| gptkb:Sado_Island_Gold_Mines | early 17th century |
| gptkb:Altenberg-Zinnwald_Mining_Landscape | 15th century |
| gptkb:TauTona_gold_mine | 1962 |