Baseren
X-Factor Investigations Headquarters, New York, New York; voorheen Detroit, Michigan; mobiel; Xaviers School voor hoogbegaafde jongeren, Salem Center, Westchester County, New York; Mojoverse; Cootermans Creek, Australische Outback, Australië; Alcatraz I
Xavier Institute for Higher Learning, Salem Center, Westchester County, New York (voormalige) Muir Island, Schotland; Braddock Lighthouse