Flying Wall over Potsdamer Platz to Kollhoff tower A segment of the Berlin Wall is carried by helicopter over the Potsdamer Platz in Berlin to the top of the Kollhoff Tower at a hight of 100 meters (328 feet). The world's highest segment of the Berlin Wall can be viewed on the PANORAMAPUNKT located on the 24th floor of the Kollhoff Tower July 15, 2010