Episode 105: The Flak Tower Humboldthain


Hochstraße 5, 13357 Berlin


  • Third and last built flak tower of Berlin
  • Concrete walls up to 3.5 meters thick

Before getting into Humboldthain’s Flak tower, we should understand what is a flak tower, right? Let’s get back in time to the Second World War. More precisely to 1940 when Berlin was attacked by the Royal Air Force. Hitler was not happy and ordered the construction of three flak towers in the city. Flak Tower I was by the Zoologischer Garten, Flak Tower II in Friedrichshain and Flak Tower III was in Hulboldthain. Actually there were plans of building even more flak towers in the city, but these plans were dropped.

Each flak tower had two components: a gun tower or G-tower and a lead tower or L-tower. The G-tower was the attack tower and the L-tower the command one. The bomb proof flak towers were also intended to be used as a civilian bunker in case of attacks.

The Flak Tower III or Flak Tower Humboldthain was built between October 1941 and April 1942 and it could house up to 15,000 people. The bomb proof towers proved to be not so bomb proof after all. After the war, in 1948, the French exploded the towers leaving only a part of it visible.

Today, you can see the remains of both G and L towers of the Flak Tower Humboldthain. By climbing the mount of debris you can go to its very top to watch the Berliner sunset. If you are also interested in visiting the inside of the G-tower, it is your lucky day: you can go with a tour from Berliner Unterwelten.

For the audio version of this episode, check out the talk below:

Photo and episode: Roberta Caldas

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