At the beginning of the 19th century, the Alexanderplatz was one of the busiest squares in Berlin. he TV tower, known as the Fernsehturm or the Tele-spargel (toothpick) is one of the largest structures in Europe. The total length to the top of the spire is 365m or 1197 ft. It was built in 1969 by a team of architects with the help of Swedish experts. It contains a concrete shaft, a steel-cladded metal sphere and a TV antenna. The sphere contains a revolving restaurant (Telecafé) at 207m and a viewing platform at a height of 203m.