The crew over at Found & Explained have made several weird war documentaries so give them a looks see below and see what you think.
"The Insane Giant Nazi Railway - The Breitspurbahn"
"The Plane To Save Japan - Biggest Japanese KX-3"
"Soviet Flying Tank - The True Story of the Antonov A-40"
"The Legendary Nazi UFO - Is It Real?"
"The Nazi Bomber Made To Destroy New York - The Horten H.XVIII 18 Flying Wing America Bomber"
"Insane Flying Wing Jet Fighter To Save Germany - Horten Ho 229 Nazi UFO"