Who built the flak towers?

Nazi Germany
Flak towers (German: Flaktürme) were large, above-ground, anti-aircraft gun blockhouse towers constructed by Nazi Germany. There were 8 flak tower complexes in the cities of Berlin (3), Hamburg (2), and Vienna (3) from 1940 onwards. Other cities that used flak towers included Stuttgart and Frankfurt.

How many flak towers are left?

six flak towers
While most of them were demolished after the war in Germany, the six flak towers built in Vienna are still standing. One is located within a military base of the Austrian Army, one has become an aquarium, the Haus des Meeres, and several projects are considered for the others.

How many flak towers are in Berlin?

The flak towers had radars to detect incoming attacks. Huge reflectors lightened up the night skies to ease aiming at the Allied bombers. In Berlin, three such towers were built to protect the city center. Hamburg had two flak towers and Vienna three of them.

Where are the flak towers in Vienna?

When Were The Flak Towers in Vienna Built? Between 1942 and 1945, hundreds of forced and immigrant labourers built the six flak towers in Vienna. In order to protect the city center the three pairs form a triangle around St. Stephen’s Cathedral (Stephansdom) and are located in the second, third and sixth districts.

Where are the flak towers in Berlin?

Humboldthain Park
The Berlin Flak Tower in Humboldthain Park is a seven-storey bunker originally built under Hitler’s orders to protect Berlin from aerial attacks during the Second World War.

How does flak explode?

Flak as we know it ( the exploding ordinance variety ) works by using fuses. One may use a timed fuse in the shell. After so many seconds, the shell would detonate like a times bomb. Another, is a barometric fuse, a fuse that’s triggered when a certian altitude is reach by measuring air pressure.