Staying in Massa Marittima, anyone who wants to have a unique, interesting experience can do so by visiting the Mining Museum, created from the transformation of an old quarry of construction materials, where three tunnels were dug out as shelters during World War II.
In 1980, the tunnels were set up by miners who have realistically reproduced the internal environment of a mine: the route continues for about 700 metres, through secondary and main tunnels were different types of reinforcements can be see that support the vaulted ceilings, with documentation of the various mineral extraction techniques. Several work tools, machinery and wagons are on display, that were still in use until a few years ago.
There is nothing missing, you can fully experience the atmosphere of mining life: there is even a “canteen”, and the cages that contained the canaries, used by miners to defend themselves from firedamp gases: if the birds, who are very sensitive to the gas, showed signs of suffocation, then it was time to get out of there fast....
P.S. cover yourself up, it's cold in there!