Rheinturm

Rheinturm is a 240.5 meters high (789 ft) concrete telecommunications tower located in Düsseldorf, the capital of the German state of North Rhine-Westphalia (Bundesland). Construction began in 1979 and was completed in 1981. Rheinturm carries antennas for directional radio, FM and TV transmitters. It is 172.5 meters high and houses a revolving restaurant and a 168 meters high observation deck. It is the tallest building in Düsseldorf. The Rheinturm opened on December 1, 1981. It contains 7,500 cubic meters of concrete and weighs 22,500 tons. Before October 15, 2004, when an aerial antenna for DVB-T was installed, its height was 234.2 meters. The observation deck is open to the public daily from 10:00 to 23:30. As a special attraction, a light sculpture on its shaft acts as a clock. This sculpture was designed by Horst H. Baumann and called the Lichtzeitpegel (light time level). The light sculpture in the Rheinturm is the world's largest digital clock.