It was a moment steeped in history for the Saarland. On June 7, 2016, a Terex AC 200 crane and a AC 350 crane owned by Steil Kranarbeiten lifted the 35-meter-long, 60-tonne observation deck for the Saarpolygon together with two other cranes. With accuracy, the machines placed the steel colossus between the two diagonal elements of the large walk-in monument, which is located on top of the Duhamel spoil pile in Ensdorf. Once they were done, the impressive landmark, which can be seen from miles away, had its intended appearance and could start fulfilling its function as an emblem for the entire region.