Serval Industries, Virginia; früher X-Factor Untersuchungen Hauptquartier, Starjammer; Xavier Institute for Higher Learning, Salem-Center, Westchester County, New York; Genosha; X-Factor HQ, Washington DC, Maryland; Mutant Research Center, Muir Insel;
Xavier Institute for Higher Learning, Salem-Center, Westchester County, New York (ehemaligen) Muir Island, Schottland; Braddock Leuchtturm