The round 12-story wooden exhibition tower, diameter and height 50 m each, formed the antipole to the high-tech tents of the exhibition. A skeleton with circularly arranged masts and semicircular tongs was chosen as the main supporting structure. For the connection of the tongs, a new type of heavy-duty fastener had to be developed, which had to meet high demands with requirements such as load-bearing capacity, flexibility (round timber) and low-cost procurement. Wood can certainly be used for more than just archaic structures, yet here it was the welcome backdrop for a historical research exhibition.