A rusty V2 rocket engine in the underground production facilities of the Nazi concentration camp Dora-Mittelbau (Nordhausen, Thuringia, Germany). V1's and V2's were produced here from january 1944 by camp inmates in enormous tunnel systems with a total length of some 20 km.
Vincent van Zeijst
<span class="int-own-work" lang="en">Own work</span>