This category gathers historical underground sites, including industrial mines, military counter-mine galleries, and subterranean mills. It covers the extraction of coal, iron, salt, and slate across Europe, from the medieval origins of Wieliczka to 19th-century sites like the Guido mine and the Blue Mine in Anjou. Readers discover how subterranean engineering evolved over centuries to exploit natural resources, establish post-war mills in Malta, and construct defensive military networks beneath fortifications.
Water reservoirs in Malta In Malta, water has always been scarce and precious. Since prehistoric times, inhabitants dug cisterns into limestone. They then applied a waterproof plaster to retain rainwater.…
Introduction The Harnekop nuclear bunker served as the main command post for the East German Ministry of Defense and the National People's Army in the event of a nuclear attack.…
The Incredible Epic of the Milwr Tunnel Wales hides beneath its hills an exceptional industrial heritage. Among these underground treasures, the Milwr Tunnel stands out for its scale and ingenuity.…
The Catacombs of Rome: An Underground Journey Through History Dive into the depths of the Eternal City and discover the fascinating Roman catacombs, silent witnesses to nearly two millennia of…
Groundwater is more than just a resource for mining and quarrying; it is also a crucial element in the architectural beauty of existing structures. In the underground world of mining…
Consolidation methods Consolidations are used to stabilize voids and allow the construction of surface structures. They can be carried out using different techniques, such as hedges and tamping, arm pillars,…
The word "quarry" comes from the Latin quadrus which is a shortening of quadrus lapis, which term means "square stone", in other words "cut stone". Unlike mines where so-called strategic…
Evolution of underground transport modes Stones extracted from underground quarries began to be transported using wooden carts. For a long time, that is, until the 1910s, almost all stone blocks…