The new observation tower on the Pyramidenkogel (Keutschach, Austria) has a spatial frame structure, with three main components: 16 glulam larch wood supports; 10 elliptic steel rings; and 8 diagonal steel struts.
The basic geometry of the tower consists of a series of ellipses (major axis 19 m, minor axis 11
m) arranged in such a way to rotate by 22.5° from floor to floor. The height of the tower is 100 m;
the highest visitors’ platform is at height 71 m.
