Cologne – September 12, 2026 -- Subway has secured a Guinness World Record for the "Largest Inflatable Sculpture of a Potato," unveiling a 9.5-meter-long, 6.6-meter-wide and 4.9-meter-tall potato installation in Cologne's MediaPark. Guinness World Records adjudicator Lena Kuhlmann measured and certified the structure, confirming no larger potato sculpture has ever been built.