Under the old city of Maastricht you can find some old fortifications and about 12 km's of corridors from the 18th century.
At the beginning of WW2, a part of this underground system is transformed into air raid shelters for the civilians of the city of Maastricht. They made seats, lightning system, air systems and toilets for the people to stay underground. There was a capacity for 25.000 citizens and it was used several times during war time situations.
After the WW2 and the start of the Cold War, additional shelters, equipment and facilities where built according the technical views at that time.
The Civil Protection organization, BB A-kring Limburg-a, was responsible for the protection of the civilians.
There are tours around the casemates of Maastricht, please contact the local tourist office.
x shelters made in the 19th century
x shelters made in the 20th century