Day 3: Maastricht tunnels

Maastricht is a town built on limestone (which is easy to carve out). When gunpowder was introduced and city walls were not that effective as before, they started constructing tunnels for advancedLæs mere
Maastricht is a town built on limestone (which is easy to carve out). When gunpowder was introduced and city walls were not that effective as before, they started constructing tunnels for advancedLæs mere