Hardenstein Castle remains lie near the Ruhr River, surrounded by mountains, and are not easily accessible. Nearby ruins show that the castle was once part of an important mining centre, probably dating to the Middle Ages; the earliest records, from the 16th century, support this. The castle is featured in the legend of the Nibelungs.
The castle's association with mining led to a legend that King Goldemar, a dwarf or kobold, dwelled there. One version of the story says that King Goldemar lived with Neveling von Hardenberg at the castle. For three years, he brought the inhabitants good luck until a curious man tried to see his footprints by casting tares and ashes about. Goldemar cut the man up, roasted his body, boiled his head and legs, and ate him. He was gone the next day, vowing through a note that the house would be as unlucky as it had been lucky while he lived there.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.