285K views · 7.4K reactions | In the fall of 1944, the U.S. First...

By 1944, Nazi Germany’s mighty war machine was running out of its most vital weapon — fuel. Tanks, aircraft, and trucks that once blitzed across Europe were grinding to a halt. In a desperate bid to keep the war alive, Hitler turned to a secret project buried deep underground — a vast, hidden complex designed to produce synthetic fuel safe from Allied bombers. This was the heart of the Third Reich’s last hope — an underground oil plant carved into mountains and tunnels, protected by concrete and