Deutschlandfunk-Funkhaus, Broadcasting complex in Marienburg, Germany

Deutschlandfunk-Funkhaus is a broadcasting complex in Cologne's Marienburg district that rises 102 meters (335 feet) above the city. The 19-story tower contains multiple studios, technical facilities, and offices that support the daily production of radio programs.

The Deutschlandfunk board chose Gerhard Weber's preliminary design in 1969. Construction began in 1974: on a 100-metre reinforced-concrete core, a cantilever structure borrowed from bridge building was mounted, and the floors were lowered into place one by one, hung on steel cables in the slanted concrete beams on the roof. Studios and editorial offices have been housed here since 18 February 1979, with the official opening on 24 April 1980. The tower has been a listed monument since 29 January 2024.

The Sendesaal and Kammermusiksaal inside the Funkhaus are ranked alongside Gerhard Weber's theatre halls, such as the Nationaltheater Mannheim and the Hamburgische Staatsoper, for their acoustics. Public guided tours of the building are offered at regular intervals, giving visitors access to the broadcasting rooms.

The tower stands in Raderthal, on the left bank of the Rhine, not in Marienburg. Public guided tours of the Funkhaus are offered at regular intervals, so check dates in advance. The former Deutsche Welle building next door was fully dismantled by 2021, so the tower now stands alone.

The tower's floors hang from steel cables inside slanted concrete beams on the roof, a suspension method borrowed from bridge building. During construction from 1974, each storey was lowered one by one onto a 100-metre reinforced concrete core. Architect Gerhard Weber's design was chosen by the Deutschlandfunk board in 1969.