The Volklingen Iron Works has a unique place in the history of science and technology and the history of industrial civilization in the 19th and early 20th centuries. It provides us with a rare complete picture of a large cast iron production plant in history. So far people have not found that other complete sets of blast furnace equipment can show the production process of cast iron in such a complete and accurate manner.
Tunnel The Emilianus Tunnel is the best known and longest Roman-era mining activity in Germany. Underneath the tunnel is a clearly visible pile of slag. The copper mines on a steep slope date back to the 2nd and 3rd centuries BC and are now open to tourists.
Tunnel The Emilianus Tunnel seems to be favored by the God of Fortune. In the long history, most of its area is free from destruction. The frequent mining activities in modern times have not erased the traces of the Roman period. But the most remarkable thing about the Emilianus Tunnel is that not only Roman discoveries are found in its fillings, but also an inscription inscribed in the ore channel for the owner at the time. It is the only existing and working place in existence. The relevant inscriptions of the Roman Empire are unique witnesses and memorials of the Roman mining industry.
In order to make better use of the commemorative value of the tunnel and facilitate public visits by interested parties, the first systematic excavation work was carried out in the 1960s, and the excavation work was successfully completed in 1976. The inscription was first discovered in the 1840s. A few meters away from it, water rushed out of the rocks and converged into a muddy place. In 1964, a hole was opened and the upper Emilianus tunnel was found. Every place here, whether it is the cave roof or the edge of the tunnel, the remains of manual labor in the Roman period are clearly visible.