Secret Nazi Bases

The collapse of the Third Reich left as many secrets as it did relics.
Still today, remnants of the Nazi's schemes lie concealed in structures scattered
across the globe.
Skeletons of projects give way to mysteries.
Conspiracies abound about science fiction scenarios.
The Nazis were nothing if not methodical, and a deeper look reveals even darker plans.
From tunnels to towers, artillery sites and communication centers; the remains of these
schemes lie waiting to reveal truths about the Fuhrer's tactics and dreams in Secret
Nazi Bases.
What did Hitler have planned?