Maastricht, Netherlands
Caves of Maastricht (North Caves)

A vast man-made labyrinth of limestone quarry galleries beneath Mount Saint Peter, dug over centuries to mine marl for building. Once numbering some 20,000 passages, the cool tunnels sheltered refugees and hid treasures in wartime and are lined with old wall drawings.
What the app adds
Roots Earth has a longer story for Caves of Maastricht (North Caves), with a choice of female or male voice. Download the city audio to listen offline. No account is needed.
Location
Coordinates: 50.835251, 5.685255