Westhafen Tower

The glass facade of the Westhafen Tower dominates the harbor area on the Main

The Westhafen Tower is a skyscraper in the Gutleutviertel of Frankfurt am Main. The 112.3 meter high building was designed by the architectural firm Schneider + Schumacher and completed in 2004.
The Westhafen Tower is one of the first buildings at the former Frankfurt Westhafen. Since 2000, apart from office buildings, apartments have also been created around the harbor basin.
Source: Wikipedia

The Westhaven Tower is nicknamed "ribbed" or "ribbed" as it has the look and feel of an apple cider glass.

The Westhafen Tower is a high-rise building in the Gutleut district of Frankfurt am Main. The 112.3 meter high building was designed by the architects Schneider + Schumacher and completed in 2004.
The Westhafen Tower is one of the first buildings on the former Frankfurt Westhafen. In addition to office buildings, apartments have also been built around the harbor basin since 2000.
The high-rise has the shape of a cylinder with a diameter of 37.5 meters. Since the floors are arranged as squares, 18 conservatories were created between the inside and outside facade. Each of the 30 above-ground floors has a rental area of around 820 square meters.
The architectural feature is the diamond-like facade structure. 3,556 triangular glass panes form the outer skin. The structure of the glazing, which is reminiscent of a Frankfurt cider glass, popularly gave the high-rise the name Geripptes.
Part of the triangular segments of the glass facade can be opened automatically at the lower corner for ventilation purposes. The floors are heated with convectors embedded under the windows, while cooling takes place via a chilled ceiling.Source: Wikipedia

The skyscraper has the shape of a cylinder with a diameter of 37.5 meters. As the floors are arranged as squares, 18 winter gardens have sprung up between the interior and exterior facades. Each of the 30 above-ground storeys has a leasable area of approximately 820 square meters.Architectural feature is the diamond-shaped facade structure. 3,556 triangular glass panes form the outer skin. The structure of the glazing, reminiscent of a Frankfurt cider wine glass, popularly brought the skyscraper the name "ribbed".Part of the triangular segments of the glass façade can be automatically opened for ventilation purposes at the bottom corner. The floors are heated with convectors embedded under the windows, while the cooling takes place via a cooling ceiling.de.wikipedia.org/wiki/Westhafen_Tower