The 2015 magenta-coloured statue by Serge Ecker stands on a rock by the Alzette near the Bock, commemorating the legendary mermaid wife of Count Siegfried, the founder of Luxembourg. She has become a low-key meeting point and selfie spot.
Reach her by walking down into the Grund from the old town; the riverside path is a pleasant five-minute extension from the bottom of the Bock cliff.