Blegny-Mine is one of the four major coal mines in Wallonia, a recognised UNESCO world heritage site. It is an authentic coal mine with underground galleries accessible for the visitors through the original shaft.
In Blegny, the coalworking started in the 16th century under the impulse of the Monks of Val-Dieu, owners of the coal area. The first granting, Trembleur, was allowed to Gaspar Corbesier in 1799. This marked the beginning of the industrial coal working. Corbesier's descendants get the granting Argenteau which is settled near Trembleur. both grantings were put together in 1883 and totalise 2,171 acres. In 1887 the activities stopped for 30 years and the company is put into liquidation.
In 1919, a new company was created and the family Ausselet grounded the 'Company of Argenteau'. the production grew rapidly and reached 84.000 tons in 1931. During the Second World War, the tour of the pit 1 and the coal-washing building were destroyed. Coal extraction still remained by using the 'Pit Mary' but consequently with a lower rate of production. From 1942 till 1948 the pit and the wah-and-sorting building were reconstructed.
The production continued and reached 232.000 tons for 680 mineworkers. In 1975, the Industrial ans Social Ministerial Committee of Belgium stopped state grants to coal mines. In the region of Liège, the coal mines were closed one by one. The latest one 'Argenteau-trembleur' closed on March 31st, 1980.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.