GERMAN FLAK TOWER, VIENNA, MODERN DAYS. FLAK TOWERS, LIKE THIS ONE, WOULD HAVE BEEN BRISTLING
WITH ANTI-AIRCRAFT 88MM GUNS OR THE LIKE.
RADAR RANGING TOWERS WERE PAIRED WITH FLAK TOWERS SOME BLOCKS AWAY SO THE GUN'S CONCUSSIONS WOULD NOT DISTRUPT THE RADAR EQUIPTMENT.
FLAK TOWERS WERE TOO MASSIVE TO DEMOLISH AFTER THE WAR; THEY STAND TODAY.