In a great arch around Copenhagen 10 km from the city center lies a green belt. When exploring this you'll suddenly be confronted with a sight like this bunker. This is the remains of the greatest Danish fortification, the West Wall around Copenhagen, built in the late 19th century to defend Copenhagen against an attack.
The fortifications are 13 km long with ramparts, ravelins, bunkers and gun positions with a moat in front of it and a lot of overlapping fields of fire. It can be a bit difficult to see large parts of the wall due to growth but in some areas the old bunkers and their surroundings have been cleared, so it's now possible to take a closer look at this piece of history. More about the West Wall tomorrow.