History of the watchtower at Potsdamer Platz The so-called panoramic observation tower was part of the border troops base and of the Ministry for State Security. It was used for monitoring the border strip as well as the ministries close by. The solid, type BT 6 watchtower with rifle loopholes was built from 1966. At the end of the GDR era, there were more than 200 of these watchtowers on the Berlin border. The watchtower at Potsdamer Platz was erected in 1971. The shooting range stretched from the Tiergarten to the Brandenburg Gate. The tower was manned at all times by two border patrol soldiers working eight-hour watches in cramped conditions.
Today, the watchtower is the last remaining one of its kind. It was listed as a site of historical importance in 2001 and renovation work began 10 years later. Thanks to the work of volunteers, you can view the tower today on Erna-Berger-Strae. You can fine the opening hours and prices on the page of the Initiative Berlin Wall Exhibition: berlinwallexpo.de
The model is a simplified version of the guard tower and would be a good addition to a more complex model.