Berlin Wall
General information
Type	Wall
Country	East Germany East Berlin
Coordinates	52°30′58″N 13°22′37″E / 52.51611°N 13.37694°E / 52.51611; 13.37694Coordinates: 52°30′58″N 13°22′37″E / 52.51611°N 13.37694°E / 52.51611; 13.37694
Construction started	13 August 1961
Technical details
Size	155 km (96.3 mi)
Other dimensions	Border length around West Berlin: 155 km (96 mi) Border length between West Berlin and East Germany: 111.9 km (69.5 mi) Border length between West and East Berlin: 43.1 km (26.8 mi) Border length through residential areas in East Berlin: 37 km (23 mi) Concrete segment of wall height: 3.6 m (11.8 ft) Concrete segment of wall length: 106 km (66 mi) Wire mesh fencing: 66.5 km (41.3 mi) Anti-vehicle trenches length: 105.5 km (65.6 mi) Contact/signal fence length: 127.5 km (79.2 mi) Column track width: 7 m (7.7 yd) Column track length: 124.3 km (77.2 mi) Number of watch towers: 302 Number of bunkers: 20

The Berlin Wall (German: Berliner Mauer) was a wall that separated the city of Berlin in Germany from 1961 to 1989. It separated the eastern half from the western half. Many people believed it was a symbol of the Cold War. The Berlin Wall was taken down on November 9, 1989. The Berlin Wall was about 168 kilometres (104 miles) long. It was built to prevent people from escaping from the eastern half of Berlin.