You have to pass by the compound that forms the Langeline gardens, with the Citadel or Kastellet, because there you'll find the idolized mermaid.
The first few entries begin with a statue that's a favorite of the Danes, the Gefion, donated by the Carlsberg upon turning 50. It's based on the legend that the city was founded by the goddess Gefion.
We passed through green paths with busts of sculptures that reminded us of queens and victories, further down we entered the Citadel, which is still in use by the military administration today. It's a short walk that crosses the fortress from one side to the other and took us to the other side, where there's a commemorative monument so the allied soldiers.