The skyscraper Tower 185 is the prelude to the urban development of the new European Quarter in Frankfurt am Main. As the fourth highest office tower building in Germany it adds a new landmark to the silhouette of the Frankfurt skyline. The block perimeter development takes up the typical forms and materials of the neighbouring buildings, namely beige natural stone and slate roofs. The tower receives its guests with open arms at the Friedrich-Ebert site. The large square shaped like a drop and the surrounding arcades lead the visitor to the entrance and are an invitation to linger. This book documents the building's development, accompanied by photos, sketches, plans and text contributions by the authors Bernhard H. Hansen, Uwe Frerichs, Hans-Joachim Muller, Christian Thomas and Christoph Mackler. Pictures by the Frankfurt photographer Klaus Helbig convey an impression of the monumental task and achievement involved in the realisation of such a building and they interpret Christoph Mackler's architectural idea.