The Rhine Tower is a telecommunications tower in Düsseldorf, with aerials for directional radio, FM and TV. Constructed between the years 1979 and 1981, at 240.5 meters, it stands as the tallest building in Dusseldorf, but far from the 370 meters of the Berlin TV tower. It has an observatory and a revolving restaurant at 170 meters. One of the sides was designed by Horst. H Baumann, which is the world's largest digital clock.