Cologne Tower
The Cologne Tower is a 44-storey office skyscraper in the Köln-Neustadt-Nord district of Cologne, Germany that stands high, or, including its antenna. Construction of the tower lasted from June 1999 to November 2001. It is the second-tallest building in the city, the second-tallest in North Rhine-Westphalia after the Post Tower in Bonn, and the 22nd-tallest in Germany.
Because of the tower's location near Cologne's MediaPark, it is home to several media sector companies.
The observation deck and restaurant, located on the 30th floor, were opened to the public in June 2006.
Architecture
Designed around a load-bearing central core, the reinforced concrete tower with an mast to its upper end was built in cooperation between the architectural firm Kohl & Kohl and Parisian architect Jean Nouvel.The glass facade of the building was designed with reflected light in mind. Pictures of the Cologne Cathedral and the skyline of Cologne's Old Town were applied to the glass via screen-printing. Depending on light exposure, different combinations of these images appear on the building.