From the top of the Kollhoff building on Potsdamer Platz, Berlin, Germany, Europe

From the top of the Kollhoff building on Potsdamer Platz, Berlin, Germany, Europe

View from Kollhoff building Panorama Punkt, Potsdamer Platz, Berlin, Germany, Europe

From the top of the Kollhoff building on Potsdamer Platz, Berlin, Germany, Europe

Cityscape view towards the Holocaust Memorial as seen from the viewing platform of the Kollhoff Tower, Berlin, Germany, Europe

Exterior of Kollhoff Tower and Deutsche Bahn Tower at night, Potsdamer Platz, Berlin, Germany, Europe

Exterior of Debis Tower and Kollhoff Tower at night, Potsdamer Platz, Berlin, Germany, Europe

Elevated view, Reichstag from Panoramapunkt viewing platform, Kollhoff Building, Potsdamer Platz, Berlin, Germany, Europe

Elevated view, Sony Center Deutsche Bahn offices, from Panoramapunkt, Kollhoff Building, Potsdamer Platz, Berlin, Germany, Europe

Elevated view, Sony Center Deutsche Bahn offices, from Panoramapunkt, Kollhoff Building, Potsdamer Platz, Berlin, Germany, Europe

Elevated view, Sony Center Deutsche Bahn offices, from Panoramapunkt, Kollhoff Building, Potsdamer Platz, Berlin, Germany, Europe

Potsdamer Platz at night from left to right, Renzo Piano Tower, Hans Kollhoff Tower, Bahn Tower, Beisheim Center, Delbrueck Tower, Potsdamer Platz, Berlin, Germany, Europe

High-rise buildings, BahnTower and Kollhoff-Tower from a worm's-eye view, Potsdamer Platz, Berlin, Germany, Europe

Main Plaza, hotel tower, with reflective golden lace, architect Hans Kollhoff, Frankfurt am Main, Hesse, Germany, Europe

Potsdamer Platz square with the Berliner Philharmonie Concert Hall, DB Tower, Sony Center and Kollhoff Tower, Berlin, Germany, Europe

Potsdamer Platz square with DB Tower, Sony Center and Kollhoff Tower, Berlin, Germany, Europe

BahnTower, Kollhoff-Tower and other skyscrapers at Potsdamer Platz square, Berlin, Germany, Europe

Three high-rise buildings at Potsdamer Platz Square, architectural detail, from ltr, PwC, PricewaterhouseCoopers, Kollhoff-Tower, BahnTower, Berlin, Germany, Europe

Skyscrapers on Potsdamer Platz square with subway and tram entrance, Piano high-rise building, Kollhoff high-rise building, Chrysler Building, Sony Center, Deutsche Bahn Tower and Beisheim Center with Ritz Carlton Hotel, Tiergarten district, Berlin, Germa

Skyscrapers on Potsdamer Platz square, Kollhoff high-rise building, Chrysler Building, Sony Center, Deutsche Bahn Tower, Tiergarten district, Berlin, Germany, Europe