Bunker for balloon defences, in Wyprawa?
No it isn't
It is German ammo factory in Krzystkowice in Poland.It belonged to Dynamit-Aktien Gesellschaft vormals Alfred Nobel & Co
.It is reported that except production of ammo also there has been tested new models of projectiles.
On the phots is seen a large 'bunker'-actualy a concrete tank-probably for chemicals used in production,but as always with WWII objects it is linket to Vrils(?!!!) and other UFO activity.I guess it is made because of both:it's unusual and beatiful shape.
It is not typical fortyfication object (as many of us is attached to) but if someone is interested in so-called urban exploring
then it will be very interesting.This factory has it's own undiscovered underground part-major part behind military unit.
Here are some more photos to see:http://wroclaw.magma-net.pl/krzystkowice.html
Q to S_haule:
What do You mean
Bunker for balloon defences, in Wyprawa
Have some further info?