In the Wadden Sea National Park, a UNESCO World Heritage Site located to the south of the peninsula of Jutland, this sculptural observation tower stands 25 meters tall and is a tourist attraction. With an elevator tucked into the core, it was built with close to 300 tons of core-ten steel on a concrete plinth. The two strands of a DNA molecule provided the inspiration for the two flights of stairs: one for going up, with 146 steps, and the other for coming back down, with 131. Beside the Marks Camp restaurant and café, the structure shoots up from a base 7 meters wide, broadening little by little to reach 12 meters in the viewing deck on top.