The Schwabian Biosphere Reserve is an amazing, amazing place of nature, where you can talk long walks and enjoy the trees and the flowers and the birds.
And occasionally have a panic attack, such as coming across something that looks like this:
The hidden sign catches your attention, so you move a bit closer and see this:
In German the text reads: Lebensgefahr! Absolutes Betretungsverbot. . . which is roughly translated as “Life threatening danger! Tresspassing is absolutely forbidden! This complete area is forbidden due to its previous use with munitions.”