Mendasarkan
Xavier Institute for Higher Learning, Salem Pusat, Westchester County, New York (mantan) Muir Island, Skotlandia; Braddock Lighthouse
Xavier Institute, Salem Pusat, Westchester County, New York State, (mantan) The Alley (di bawah Manhattans permukaan), X-Factor Apakah kapal luar angkasa hidup