Fond-de-Gras Mine Museum
Fond-de-Gras, mining valley Minett Park Fond-de-Gras is an open-air museum focused on the industrial history of southern Luxembourg, with the mining of iron ore ("minette") as its common thread. The…
This section gathers virtual tours of underground locations, including the tomb of Ramesses VI, the Serapeum of Saqqara, Roman catacombs, and Père Lachaise cemetery crypt. It features engineering sites such as Maltese limestone cisterns, the 1870s Caluire reservoir, the Bicêtre hospital well, the Harnekop nuclear bunker near Berlin, and Parisian underground quarries. Readers learn about the history, architecture, and scientific uses of subterranean structures across different historical periods.
Underground mills of Malta
Underground mills for an island traumatized by war In the 1950s, Malta was still rebuilding after the massive destruction of the Second World War. The memory of the 1940-1942 siege,…
The Col-des-Roches Mill
In the 17th century, the Locle valley featured a marshy area, located between the village and the Col-des-Roches, which seemed unfavorable for the installation of mills due to the low…
Molay-Littry Mine Museum
The Molay-Littry Mine Museum (Calvados) recounts the coal mining discovered in Littry as early as 1741, which left a lasting mark on the territory. On site, the visit connects surface…
Iron mines
The iron mines of France are a true pillar of the country's industrial and economic history. They span several regions, from the Ardennes to the Massif Central, passing through Lorraine…
ANDRA: CIGEO underground nuclear storage project
Andra (National Agency for Radioactive Waste Management) aims to implement deep geological disposal for intermediate-level long-lived and high-level waste. Since the 1990s, Andra has therefore developed a comprehensive study program named Cigéo,…
The Costa Rica Quarry
The Costa Rica quarry is an old stone quarry located in Paris. This underground site contains various structural elements preserved beneath the city. While exploring this location, one can notably…
The Ackerman Cellars
In the 19th century, in the picturesque region of Saumur, France. This is where it all began. The cellars Ackerman, founded in 1811 by Jean-Baptiste Ackerman, have since represented the…
The Carrara-City Space
The Carrara-City space is an underground art gallery located within a protected architectural heritage zone. This cultural venue features various works dedicated to sculpture and stonework. Within this protected space,…
Virtual tour of the NATO underground base
During the 1940s, the Nazi occupation forces took possession of the Cannerberg tunnels site. These tunnels were then used to establish a V1 missile assembly plant. During the Ardennes offensive,…