Fiction abounds with stories of Nazi Superscience: From Captain America's nemesis Red Skull to the B-movie treasure Iron Sky (which suggests the Third Reich established a moon base after the war). But the trope is based in some fact. Nazis did aggressively research cutting edge weapons to turn the tide of a war they were increasingly losing. Some weapons, such as the V2 rocket, did see production and terrorized the Allies. Others were advanced but impractical, such as 1000-ton tanks. Still others existed completely in the realm of science fiction, such as an orbital mirror that could focus enough solar energy to create a laser that could incinerate a city or fry an ocean.