New Berlin is a secret hidden city based in Bolivia.
History
Nazi scientist Dr. Sigmund Fell escaped to South America after the war to create a secret society Synthezoids. The one flaw with the androids was that, when exposed to air, they would burst into flame. Secreted within a sealed city specially treated air prevented the androids from bursting into flame, and the citizens believed themselves to exist within the actual Berlin of a world ruled by the Nazis.[1] Fell recruited the Mad Thinker to help with his creation, the “Inhuman Torch”.[2]