The German designation is Winkelturm or Spitzturm. 305 people found protection in each of these cigars.
This one is closed.
The height varies from 20 till 25 meters.
Circle at the bottom measures 8.4 meters.
This one has fallen down and shows some details.
The cone on top is made of steel.
The walls at the bottom are made of 2 meters concrete which was not reinforced.
One Winkelturm can be visited freely.
This nicely overgrown tower is integrated in the forest.