Neo-Nazi marches in Dresden and left-wing groups had been relatively weak for years. With the emergence of the "Dresden Nazifrei" alliance (Dresden without Nazis), the Nazi march was blocked from marching for the first time in 2010 by thousands of demonstrators, again in 2011 and prevented entirely in 2012. While part of East Germany, Dresden was in the so-called "valley of the clueless" ("Tal der Ahnungslosen"), with its citizens out of the reach of the Western radio and television that citizens elsewhere in the East were able to listen to illegally. Dresden continued to be different after the German reunification; while most states in
Culture in Dresden time it was built, its architecture was controversial but today it is a listed building. It is used as offices. The Fernsehturm Dresden-Wachwitz is the city TV tower. It is 252 metres high and towers 373 metres above the valley. There are several waterworks in the city. Most of them use water from the Elbe river. One of the oldest waterworks is the "Saloppe", which extracts fresh water from small rivers in the Dresden Heath forest. The place of the Augustusbrücke between Altstadt and Neustadt in the centre of the city is the location of the oldest bridges in Dresden.